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Finding the Fourth Proportional to 2,269.12, 3,403.71 and 625.65

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Solution

The fourth proportional to 2,269.12, 3,403.71 and 625.65 is: 938.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.12 : 3,403.71 = 625.65 : x
  2. Step 2: Convert to fraction form
    2,269.12/3,403.71 = 625.65/x
  3. Step 3: Cross multiply
    2,269.12x = 3,403.71 × 625.65
  4. Step 4: Simplify right side
    2,269.12x = 2,129,531.16
  5. Step 5: Solve for x
    x = 2,129,531.16/2,269.12
  6. Step 6: Final answer
    x = 938.48

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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.