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Finding the Fourth Proportional to 7,572.76, 10,451.10 and 4,429.42

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Solution

The fourth proportional to 7,572.76, 10,451.10 and 4,429.42 is: 6,113.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.76 : 10,451.10 = 4,429.42 : x
  2. Step 2: Convert to fraction form
    7,572.76/10,451.10 = 4,429.42/x
  3. Step 3: Cross multiply
    7,572.76x = 10,451.10 × 4,429.42
  4. Step 4: Simplify right side
    7,572.76x = 46,292,311.36
  5. Step 5: Solve for x
    x = 46,292,311.36/7,572.76
  6. Step 6: Final answer
    x = 6,113.00

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Find fourth proportional to 3,786.38, 5,225.55 and 2,214.71
Half scale
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Double scale
Find fourth proportional to 7,573.76, 10,452.48 and 4,430.42
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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.