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Finding the Fourth Proportional to 3,502.38, 5,255.88 and 1,860.12

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Solution

The fourth proportional to 3,502.38, 5,255.88 and 1,860.12 is: 2,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,502.38 : 5,255.88 = 1,860.12 : x
  2. Step 2: Convert to fraction form
    3,502.38/5,255.88 = 1,860.12/x
  3. Step 3: Cross multiply
    3,502.38x = 5,255.88 × 1,860.12
  4. Step 4: Simplify right side
    3,502.38x = 9,776,567.51
  5. Step 5: Solve for x
    x = 9,776,567.51/3,502.38
  6. Step 6: Final answer
    x = 2,791.41

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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.