Home / 5,387.34-7,431.39-3,397.17

Finding the Fourth Proportional to 5,387.34, 7,431.39 and 3,397.17

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Solution

The fourth proportional to 5,387.34, 7,431.39 and 3,397.17 is: 4,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.34 : 7,431.39 = 3,397.17 : x
  2. Step 2: Convert to fraction form
    5,387.34/7,431.39 = 3,397.17/x
  3. Step 3: Cross multiply
    5,387.34x = 7,431.39 × 3,397.17
  4. Step 4: Simplify right side
    5,387.34x = 25,245,695.17
  5. Step 5: Solve for x
    x = 25,245,695.17/5,387.34
  6. Step 6: Final answer
    x = 4,686.12

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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.