Home / 5,174.10-7,761.15-1,711.70

Finding the Fourth Proportional to 5,174.10, 7,761.15 and 1,711.70

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Solution

The fourth proportional to 5,174.10, 7,761.15 and 1,711.70 is: 2,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.10 : 7,761.15 = 1,711.70 : x
  2. Step 2: Convert to fraction form
    5,174.10/7,761.15 = 1,711.70/x
  3. Step 3: Cross multiply
    5,174.10x = 7,761.15 × 1,711.70
  4. Step 4: Simplify right side
    5,174.10x = 13,284,760.46
  5. Step 5: Solve for x
    x = 13,284,760.46/5,174.10
  6. Step 6: Final answer
    x = 2,567.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.