Home / 1,276.28-1,915.08-968.04

Finding the Fourth Proportional to 1,276.28, 1,915.08 and 968.04

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Solution

The fourth proportional to 1,276.28, 1,915.08 and 968.04 is: 1,452.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.28 : 1,915.08 = 968.04 : x
  2. Step 2: Convert to fraction form
    1,276.28/1,915.08 = 968.04/x
  3. Step 3: Cross multiply
    1,276.28x = 1,915.08 × 968.04
  4. Step 4: Simplify right side
    1,276.28x = 1,853,874.04
  5. Step 5: Solve for x
    x = 1,853,874.04/1,276.28
  6. Step 6: Final answer
    x = 1,452.56

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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.