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Finding the Fourth Proportional to 671.96, 926.86 and 473.22

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Solution

The fourth proportional to 671.96, 926.86 and 473.22 is: 652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.96 : 926.86 = 473.22 : x
  2. Step 2: Convert to fraction form
    671.96/926.86 = 473.22/x
  3. Step 3: Cross multiply
    671.96x = 926.86 × 473.22
  4. Step 4: Simplify right side
    671.96x = 438,608.69
  5. Step 5: Solve for x
    x = 438,608.69/671.96
  6. Step 6: Final answer
    x = 652.73

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Double scale
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1.5x scale

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.