Home / 3,553.92-4,911.16-2,668.20

Finding the Fourth Proportional to 3,553.92, 4,911.16 and 2,668.20

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Solution

The fourth proportional to 3,553.92, 4,911.16 and 2,668.20 is: 3,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.92 : 4,911.16 = 2,668.20 : x
  2. Step 2: Convert to fraction form
    3,553.92/4,911.16 = 2,668.20/x
  3. Step 3: Cross multiply
    3,553.92x = 4,911.16 × 2,668.20
  4. Step 4: Simplify right side
    3,553.92x = 13,103,957.11
  5. Step 5: Solve for x
    x = 13,103,957.11/3,553.92
  6. Step 6: Final answer
    x = 3,687.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.