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Finding the Fourth Proportional to 836.27, 1,253.15 and 662.22

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Solution

The fourth proportional to 836.27, 1,253.15 and 662.22 is: 992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.27 : 1,253.15 = 662.22 : x
  2. Step 2: Convert to fraction form
    836.27/1,253.15 = 662.22/x
  3. Step 3: Cross multiply
    836.27x = 1,253.15 × 662.22
  4. Step 4: Simplify right side
    836.27x = 829,860.99
  5. Step 5: Solve for x
    x = 829,860.99/836.27
  6. Step 6: Final answer
    x = 992.34

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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.