Home / 3,728.56-5,144.70-2,549.20

Finding the Fourth Proportional to 3,728.56, 5,144.70 and 2,549.20

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Solution

The fourth proportional to 3,728.56, 5,144.70 and 2,549.20 is: 3,517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.56 : 5,144.70 = 2,549.20 : x
  2. Step 2: Convert to fraction form
    3,728.56/5,144.70 = 2,549.20/x
  3. Step 3: Cross multiply
    3,728.56x = 5,144.70 × 2,549.20
  4. Step 4: Simplify right side
    3,728.56x = 13,114,869.24
  5. Step 5: Solve for x
    x = 13,114,869.24/3,728.56
  6. Step 6: Final answer
    x = 3,517.41

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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.