Home / 3,722.92-5,139.68-2,545.72

Finding the Fourth Proportional to 3,722.92, 5,139.68 and 2,545.72

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Solution

The fourth proportional to 3,722.92, 5,139.68 and 2,545.72 is: 3,514.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.92 : 5,139.68 = 2,545.72 : x
  2. Step 2: Convert to fraction form
    3,722.92/5,139.68 = 2,545.72/x
  3. Step 3: Cross multiply
    3,722.92x = 5,139.68 × 2,545.72
  4. Step 4: Simplify right side
    3,722.92x = 13,084,186.17
  5. Step 5: Solve for x
    x = 13,084,186.17/3,722.92
  6. Step 6: Final answer
    x = 3,514.50

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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.