Home / 2,379.28-3,569.52-918.04

Finding the Fourth Proportional to 2,379.28, 3,569.52 and 918.04

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Solution

The fourth proportional to 2,379.28, 3,569.52 and 918.04 is: 1,377.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.28 : 3,569.52 = 918.04 : x
  2. Step 2: Convert to fraction form
    2,379.28/3,569.52 = 918.04/x
  3. Step 3: Cross multiply
    2,379.28x = 3,569.52 × 918.04
  4. Step 4: Simplify right side
    2,379.28x = 3,276,962.14
  5. Step 5: Solve for x
    x = 3,276,962.14/2,379.28
  6. Step 6: Final answer
    x = 1,377.29

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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.