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Finding the Fourth Proportional to 837.04, 1,249.57 and 727.72

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Solution

The fourth proportional to 837.04, 1,249.57 and 727.72 is: 1,086.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    837.04 : 1,249.57 = 727.72 : x
  2. Step 2: Convert to fraction form
    837.04/1,249.57 = 727.72/x
  3. Step 3: Cross multiply
    837.04x = 1,249.57 × 727.72
  4. Step 4: Simplify right side
    837.04x = 909,337.08
  5. Step 5: Solve for x
    x = 909,337.08/837.04
  6. Step 6: Final answer
    x = 1,086.37

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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.