Home / 3,613.61-5,421.29-1,241.66

Finding the Fourth Proportional to 3,613.61, 5,421.29 and 1,241.66

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Solution

The fourth proportional to 3,613.61, 5,421.29 and 1,241.66 is: 1,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.61 : 5,421.29 = 1,241.66 : x
  2. Step 2: Convert to fraction form
    3,613.61/5,421.29 = 1,241.66/x
  3. Step 3: Cross multiply
    3,613.61x = 5,421.29 × 1,241.66
  4. Step 4: Simplify right side
    3,613.61x = 6,731,365.63
  5. Step 5: Solve for x
    x = 6,731,365.63/3,613.61
  6. Step 6: Final answer
    x = 1,862.78

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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.