Home / 5,397.57-7,448.66-3,129.35

Finding the Fourth Proportional to 5,397.57, 7,448.66 and 3,129.35

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Solution

The fourth proportional to 5,397.57, 7,448.66 and 3,129.35 is: 4,318.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,397.57 : 7,448.66 = 3,129.35 : x
  2. Step 2: Convert to fraction form
    5,397.57/7,448.66 = 3,129.35/x
  3. Step 3: Cross multiply
    5,397.57x = 7,448.66 × 3,129.35
  4. Step 4: Simplify right side
    5,397.57x = 23,309,464.17
  5. Step 5: Solve for x
    x = 23,309,464.17/5,397.57
  6. Step 6: Final answer
    x = 4,318.51

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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.