Home / 3,713.30-5,126.20-2,872.10

Finding the Fourth Proportional to 3,713.30, 5,126.20 and 2,872.10

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Solution

The fourth proportional to 3,713.30, 5,126.20 and 2,872.10 is: 3,964.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,713.30 : 5,126.20 = 2,872.10 : x
  2. Step 2: Convert to fraction form
    3,713.30/5,126.20 = 2,872.10/x
  3. Step 3: Cross multiply
    3,713.30x = 5,126.20 × 2,872.10
  4. Step 4: Simplify right side
    3,713.30x = 14,722,959.02
  5. Step 5: Solve for x
    x = 14,722,959.02/3,713.30
  6. Step 6: Final answer
    x = 3,964.93

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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.