Home / 3,082.60-4,256.98-2,637.90

Finding the Fourth Proportional to 3,082.60, 4,256.98 and 2,637.90

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Solution

The fourth proportional to 3,082.60, 4,256.98 and 2,637.90 is: 3,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.60 : 4,256.98 = 2,637.90 : x
  2. Step 2: Convert to fraction form
    3,082.60/4,256.98 = 2,637.90/x
  3. Step 3: Cross multiply
    3,082.60x = 4,256.98 × 2,637.90
  4. Step 4: Simplify right side
    3,082.60x = 11,229,487.54
  5. Step 5: Solve for x
    x = 11,229,487.54/3,082.60
  6. Step 6: Final answer
    x = 3,642.86

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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.