Home / 3,126.72-4,672.20-2,382.24

Finding the Fourth Proportional to 3,126.72, 4,672.20 and 2,382.24

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Solution

The fourth proportional to 3,126.72, 4,672.20 and 2,382.24 is: 3,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.72 : 4,672.20 = 2,382.24 : x
  2. Step 2: Convert to fraction form
    3,126.72/4,672.20 = 2,382.24/x
  3. Step 3: Cross multiply
    3,126.72x = 4,672.20 × 2,382.24
  4. Step 4: Simplify right side
    3,126.72x = 11,130,301.73
  5. Step 5: Solve for x
    x = 11,130,301.73/3,126.72
  6. Step 6: Final answer
    x = 3,559.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.