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Finding the Fourth Proportional to 968.00, 1,451.68 and 621.72

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Solution

The fourth proportional to 968.00, 1,451.68 and 621.72 is: 932.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.00 : 1,451.68 = 621.72 : x
  2. Step 2: Convert to fraction form
    968.00/1,451.68 = 621.72/x
  3. Step 3: Cross multiply
    968.00x = 1,451.68 × 621.72
  4. Step 4: Simplify right side
    968.00x = 902,536.94
  5. Step 5: Solve for x
    x = 902,536.94/968.00
  6. Step 6: Final answer
    x = 932.38

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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.