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Finding the Fourth Proportional to 637.77, 958.14 and 453.12

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Solution

The fourth proportional to 637.77, 958.14 and 453.12 is: 680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.77 : 958.14 = 453.12 : x
  2. Step 2: Convert to fraction form
    637.77/958.14 = 453.12/x
  3. Step 3: Cross multiply
    637.77x = 958.14 × 453.12
  4. Step 4: Simplify right side
    637.77x = 434,152.40
  5. Step 5: Solve for x
    x = 434,152.40/637.77
  6. Step 6: Final answer
    x = 680.74

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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.