Home / 3,127.10-4,688.92-1,279.52

Finding the Fourth Proportional to 3,127.10, 4,688.92 and 1,279.52

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Solution

The fourth proportional to 3,127.10, 4,688.92 and 1,279.52 is: 1,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.10 : 4,688.92 = 1,279.52 : x
  2. Step 2: Convert to fraction form
    3,127.10/4,688.92 = 1,279.52/x
  3. Step 3: Cross multiply
    3,127.10x = 4,688.92 × 1,279.52
  4. Step 4: Simplify right side
    3,127.10x = 5,999,545.07
  5. Step 5: Solve for x
    x = 5,999,545.07/3,127.10
  6. Step 6: Final answer
    x = 1,918.56

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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.