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Finding the Fourth Proportional to 892.82, 1,339.41 and 632.91

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Solution

The fourth proportional to 892.82, 1,339.41 and 632.91 is: 949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    892.82 : 1,339.41 = 632.91 : x
  2. Step 2: Convert to fraction form
    892.82/1,339.41 = 632.91/x
  3. Step 3: Cross multiply
    892.82x = 1,339.41 × 632.91
  4. Step 4: Simplify right side
    892.82x = 847,731.60
  5. Step 5: Solve for x
    x = 847,731.60/892.82
  6. Step 6: Final answer
    x = 949.50

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Double scale
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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.