Home / 3,617.76-5,424.18-1,668.90

Finding the Fourth Proportional to 3,617.76, 5,424.18 and 1,668.90

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Solution

The fourth proportional to 3,617.76, 5,424.18 and 1,668.90 is: 2,502.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.76 : 5,424.18 = 1,668.90 : x
  2. Step 2: Convert to fraction form
    3,617.76/5,424.18 = 1,668.90/x
  3. Step 3: Cross multiply
    3,617.76x = 5,424.18 × 1,668.90
  4. Step 4: Simplify right side
    3,617.76x = 9,052,414.00
  5. Step 5: Solve for x
    x = 9,052,414.00/3,617.76
  6. Step 6: Final answer
    x = 2,502.22

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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.