Home / 5,250.15-7,246.17-4,139.78

Finding the Fourth Proportional to 5,250.15, 7,246.17 and 4,139.78

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Solution

The fourth proportional to 5,250.15, 7,246.17 and 4,139.78 is: 5,713.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.15 : 7,246.17 = 4,139.78 : x
  2. Step 2: Convert to fraction form
    5,250.15/7,246.17 = 4,139.78/x
  3. Step 3: Cross multiply
    5,250.15x = 7,246.17 × 4,139.78
  4. Step 4: Simplify right side
    5,250.15x = 29,997,513.41
  5. Step 5: Solve for x
    x = 29,997,513.41/5,250.15
  6. Step 6: Final answer
    x = 5,713.65

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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.