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Finding the Fourth Proportional to 731.53, 1,097.16 and 383.77

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Solution

The fourth proportional to 731.53, 1,097.16 and 383.77 is: 575.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    731.53 : 1,097.16 = 383.77 : x
  2. Step 2: Convert to fraction form
    731.53/1,097.16 = 383.77/x
  3. Step 3: Cross multiply
    731.53x = 1,097.16 × 383.77
  4. Step 4: Simplify right side
    731.53x = 421,057.09
  5. Step 5: Solve for x
    x = 421,057.09/731.53
  6. Step 6: Final answer
    x = 575.58

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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.