Home / 5,187.38-7,781.51-2,225.96

Finding the Fourth Proportional to 5,187.38, 7,781.51 and 2,225.96

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Solution

The fourth proportional to 5,187.38, 7,781.51 and 2,225.96 is: 3,339.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.38 : 7,781.51 = 2,225.96 : x
  2. Step 2: Convert to fraction form
    5,187.38/7,781.51 = 2,225.96/x
  3. Step 3: Cross multiply
    5,187.38x = 7,781.51 × 2,225.96
  4. Step 4: Simplify right side
    5,187.38x = 17,321,330.00
  5. Step 5: Solve for x
    x = 17,321,330.00/5,187.38
  6. Step 6: Final answer
    x = 3,339.13

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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.