Home / 3,718.38-5,577.43-1,121.25

Finding the Fourth Proportional to 3,718.38, 5,577.43 and 1,121.25

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Solution

The fourth proportional to 3,718.38, 5,577.43 and 1,121.25 is: 1,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.38 : 5,577.43 = 1,121.25 : x
  2. Step 2: Convert to fraction form
    3,718.38/5,577.43 = 1,121.25/x
  3. Step 3: Cross multiply
    3,718.38x = 5,577.43 × 1,121.25
  4. Step 4: Simplify right side
    3,718.38x = 6,253,693.39
  5. Step 5: Solve for x
    x = 6,253,693.39/3,718.38
  6. Step 6: Final answer
    x = 1,681.83

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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.