Home / 3,174.30-4,761.45-3,125.70

Finding the Fourth Proportional to 3,174.30, 4,761.45 and 3,125.70

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Solution

The fourth proportional to 3,174.30, 4,761.45 and 3,125.70 is: 4,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,174.30 : 4,761.45 = 3,125.70 : x
  2. Step 2: Convert to fraction form
    3,174.30/4,761.45 = 3,125.70/x
  3. Step 3: Cross multiply
    3,174.30x = 4,761.45 × 3,125.70
  4. Step 4: Simplify right side
    3,174.30x = 14,882,864.27
  5. Step 5: Solve for x
    x = 14,882,864.27/3,174.30
  6. Step 6: Final answer
    x = 4,688.55

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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.