Home / 3,082.16-4,272.88-2,915.84

Finding the Fourth Proportional to 3,082.16, 4,272.88 and 2,915.84

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Solution

The fourth proportional to 3,082.16, 4,272.88 and 2,915.84 is: 4,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.16 : 4,272.88 = 2,915.84 : x
  2. Step 2: Convert to fraction form
    3,082.16/4,272.88 = 2,915.84/x
  3. Step 3: Cross multiply
    3,082.16x = 4,272.88 × 2,915.84
  4. Step 4: Simplify right side
    3,082.16x = 12,459,034.42
  5. Step 5: Solve for x
    x = 12,459,034.42/3,082.16
  6. Step 6: Final answer
    x = 4,042.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.