Home / 1,549.92-2,136.20-1,255.08

Finding the Fourth Proportional to 1,549.92, 2,136.20 and 1,255.08

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Solution

The fourth proportional to 1,549.92, 2,136.20 and 1,255.08 is: 1,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.92 : 2,136.20 = 1,255.08 : x
  2. Step 2: Convert to fraction form
    1,549.92/2,136.20 = 1,255.08/x
  3. Step 3: Cross multiply
    1,549.92x = 2,136.20 × 1,255.08
  4. Step 4: Simplify right side
    1,549.92x = 2,681,101.90
  5. Step 5: Solve for x
    x = 2,681,101.90/1,549.92
  6. Step 6: Final answer
    x = 1,729.83

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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.