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Finding the Fourth Proportional to 653.38, 902.28 and 651.76

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Solution

The fourth proportional to 653.38, 902.28 and 651.76 is: 900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.38 : 902.28 = 651.76 : x
  2. Step 2: Convert to fraction form
    653.38/902.28 = 651.76/x
  3. Step 3: Cross multiply
    653.38x = 902.28 × 651.76
  4. Step 4: Simplify right side
    653.38x = 588,070.01
  5. Step 5: Solve for x
    x = 588,070.01/653.38
  6. Step 6: Final answer
    x = 900.04

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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.