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Finding the Fourth Proportional to 2,862.97, 4,295.02 and 915.29

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Solution

The fourth proportional to 2,862.97, 4,295.02 and 915.29 is: 1,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.97 : 4,295.02 = 915.29 : x
  2. Step 2: Convert to fraction form
    2,862.97/4,295.02 = 915.29/x
  3. Step 3: Cross multiply
    2,862.97x = 4,295.02 × 915.29
  4. Step 4: Simplify right side
    2,862.97x = 3,931,188.86
  5. Step 5: Solve for x
    x = 3,931,188.86/2,862.97
  6. Step 6: Final answer
    x = 1,373.12

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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.