Home / 1,177.27-1,755.63-1,031.70

Finding the Fourth Proportional to 1,177.27, 1,755.63 and 1,031.70

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Solution

The fourth proportional to 1,177.27, 1,755.63 and 1,031.70 is: 1,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.27 : 1,755.63 = 1,031.70 : x
  2. Step 2: Convert to fraction form
    1,177.27/1,755.63 = 1,031.70/x
  3. Step 3: Cross multiply
    1,177.27x = 1,755.63 × 1,031.70
  4. Step 4: Simplify right side
    1,177.27x = 1,811,283.47
  5. Step 5: Solve for x
    x = 1,811,283.47/1,177.27
  6. Step 6: Final answer
    x = 1,538.55

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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.