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Finding the Fourth Proportional to 1,349.71, 2,020.29 and 886.39

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Solution

The fourth proportional to 1,349.71, 2,020.29 and 886.39 is: 1,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.71 : 2,020.29 = 886.39 : x
  2. Step 2: Convert to fraction form
    1,349.71/2,020.29 = 886.39/x
  3. Step 3: Cross multiply
    1,349.71x = 2,020.29 × 886.39
  4. Step 4: Simplify right side
    1,349.71x = 1,790,764.85
  5. Step 5: Solve for x
    x = 1,790,764.85/1,349.71
  6. Step 6: Final answer
    x = 1,326.78

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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.