Home / 5,366.51-7,405.46-3,128.75

Finding the Fourth Proportional to 5,366.51, 7,405.46 and 3,128.75

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Solution

The fourth proportional to 5,366.51, 7,405.46 and 3,128.75 is: 4,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.51 : 7,405.46 = 3,128.75 : x
  2. Step 2: Convert to fraction form
    5,366.51/7,405.46 = 3,128.75/x
  3. Step 3: Cross multiply
    5,366.51x = 7,405.46 × 3,128.75
  4. Step 4: Simplify right side
    5,366.51x = 23,169,780.30
  5. Step 5: Solve for x
    x = 23,169,780.30/5,366.51
  6. Step 6: Final answer
    x = 4,317.48

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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.