Home / 1,330.27-1,982.04-1,255.75

Finding the Fourth Proportional to 1,330.27, 1,982.04 and 1,255.75

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Solution

The fourth proportional to 1,330.27, 1,982.04 and 1,255.75 is: 1,871.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.27 : 1,982.04 = 1,255.75 : x
  2. Step 2: Convert to fraction form
    1,330.27/1,982.04 = 1,255.75/x
  3. Step 3: Cross multiply
    1,330.27x = 1,982.04 × 1,255.75
  4. Step 4: Simplify right side
    1,330.27x = 2,488,946.73
  5. Step 5: Solve for x
    x = 2,488,946.73/1,330.27
  6. Step 6: Final answer
    x = 1,871.01

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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.