Home / 3,613.28-5,421.29-1,665.03

Finding the Fourth Proportional to 3,613.28, 5,421.29 and 1,665.03

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Solution

The fourth proportional to 3,613.28, 5,421.29 and 1,665.03 is: 2,498.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.28 : 5,421.29 = 1,665.03 : x
  2. Step 2: Convert to fraction form
    3,613.28/5,421.29 = 1,665.03/x
  3. Step 3: Cross multiply
    3,613.28x = 5,421.29 × 1,665.03
  4. Step 4: Simplify right side
    3,613.28x = 9,026,610.49
  5. Step 5: Solve for x
    x = 9,026,610.49/3,613.28
  6. Step 6: Final answer
    x = 2,498.18

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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.