Home / 2,179.38-3,269.06-619.52

Finding the Fourth Proportional to 2,179.38, 3,269.06 and 619.52

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Solution

The fourth proportional to 2,179.38, 3,269.06 and 619.52 is: 929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.38 : 3,269.06 = 619.52 : x
  2. Step 2: Convert to fraction form
    2,179.38/3,269.06 = 619.52/x
  3. Step 3: Cross multiply
    2,179.38x = 3,269.06 × 619.52
  4. Step 4: Simplify right side
    2,179.38x = 2,025,248.05
  5. Step 5: Solve for x
    x = 2,025,248.05/2,179.38
  6. Step 6: Final answer
    x = 929.28

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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.