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Finding the Fourth Proportional to 672.51, 932.02 and 662.26

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Solution

The fourth proportional to 672.51, 932.02 and 662.26 is: 917.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    672.51 : 932.02 = 662.26 : x
  2. Step 2: Convert to fraction form
    672.51/932.02 = 662.26/x
  3. Step 3: Cross multiply
    672.51x = 932.02 × 662.26
  4. Step 4: Simplify right side
    672.51x = 617,239.57
  5. Step 5: Solve for x
    x = 617,239.57/672.51
  6. Step 6: Final answer
    x = 917.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.