Home / 3,082.28-4,626.39-2,915.78

Finding the Fourth Proportional to 3,082.28, 4,626.39 and 2,915.78

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Solution

The fourth proportional to 3,082.28, 4,626.39 and 2,915.78 is: 4,376.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.28 : 4,626.39 = 2,915.78 : x
  2. Step 2: Convert to fraction form
    3,082.28/4,626.39 = 2,915.78/x
  3. Step 3: Cross multiply
    3,082.28x = 4,626.39 × 2,915.78
  4. Step 4: Simplify right side
    3,082.28x = 13,489,535.43
  5. Step 5: Solve for x
    x = 13,489,535.43/3,082.28
  6. Step 6: Final answer
    x = 4,376.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.