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Finding the Fourth Proportional to 731.89, 1,093.01 and 651.25

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Solution

The fourth proportional to 731.89, 1,093.01 and 651.25 is: 972.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.89 : 1,093.01 = 651.25 : x
  2. Step 2: Convert to fraction form
    731.89/1,093.01 = 651.25/x
  3. Step 3: Cross multiply
    731.89x = 1,093.01 × 651.25
  4. Step 4: Simplify right side
    731.89x = 711,822.76
  5. Step 5: Solve for x
    x = 711,822.76/731.89
  6. Step 6: Final answer
    x = 972.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.