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Finding the Fourth Proportional to 5,572.69, 7,690.32 and 3,088.69

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Solution

The fourth proportional to 5,572.69, 7,690.32 and 3,088.69 is: 4,262.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,572.69 : 7,690.32 = 3,088.69 : x
  2. Step 2: Convert to fraction form
    5,572.69/7,690.32 = 3,088.69/x
  3. Step 3: Cross multiply
    5,572.69x = 7,690.32 × 3,088.69
  4. Step 4: Simplify right side
    5,572.69x = 23,752,995.26
  5. Step 5: Solve for x
    x = 23,752,995.26/5,572.69
  6. Step 6: Final answer
    x = 4,262.39

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Find fourth proportional to 2,786.34, 3,845.16 and 1,544.34
Half scale
Find fourth proportional to 11,145.38, 15,380.64 and 6,177.38
Double scale
Find fourth proportional to 5,573.69, 7,691.70 and 3,089.69
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.