Home / 5,165.33-7,129.29-3,397.10

Finding the Fourth Proportional to 5,165.33, 7,129.29 and 3,397.10

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Solution

The fourth proportional to 5,165.33, 7,129.29 and 3,397.10 is: 4,688.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.33 : 7,129.29 = 3,397.10 : x
  2. Step 2: Convert to fraction form
    5,165.33/7,129.29 = 3,397.10/x
  3. Step 3: Cross multiply
    5,165.33x = 7,129.29 × 3,397.10
  4. Step 4: Simplify right side
    5,165.33x = 24,218,888.15
  5. Step 5: Solve for x
    x = 24,218,888.15/5,165.33
  6. Step 6: Final answer
    x = 4,688.74

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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.