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Finding the Fourth Proportional to 737.56, 1,105.26 and 521.56

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Solution

The fourth proportional to 737.56, 1,105.26 and 521.56 is: 781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.56 : 1,105.26 = 521.56 : x
  2. Step 2: Convert to fraction form
    737.56/1,105.26 = 521.56/x
  3. Step 3: Cross multiply
    737.56x = 1,105.26 × 521.56
  4. Step 4: Simplify right side
    737.56x = 576,459.41
  5. Step 5: Solve for x
    x = 576,459.41/737.56
  6. Step 6: Final answer
    x = 781.58

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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.