Home / 2,545.82-3,819.14-1,247.39

Finding the Fourth Proportional to 2,545.82, 3,819.14 and 1,247.39

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Solution

The fourth proportional to 2,545.82, 3,819.14 and 1,247.39 is: 1,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,545.82 : 3,819.14 = 1,247.39 : x
  2. Step 2: Convert to fraction form
    2,545.82/3,819.14 = 1,247.39/x
  3. Step 3: Cross multiply
    2,545.82x = 3,819.14 × 1,247.39
  4. Step 4: Simplify right side
    2,545.82x = 4,763,957.04
  5. Step 5: Solve for x
    x = 4,763,957.04/2,545.82
  6. Step 6: Final answer
    x = 1,871.29

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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.