Home / 1,126.73-1,681.47-1,003.71

Finding the Fourth Proportional to 1,126.73, 1,681.47 and 1,003.71

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Solution

The fourth proportional to 1,126.73, 1,681.47 and 1,003.71 is: 1,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.73 : 1,681.47 = 1,003.71 : x
  2. Step 2: Convert to fraction form
    1,126.73/1,681.47 = 1,003.71/x
  3. Step 3: Cross multiply
    1,126.73x = 1,681.47 × 1,003.71
  4. Step 4: Simplify right side
    1,126.73x = 1,687,708.25
  5. Step 5: Solve for x
    x = 1,687,708.25/1,126.73
  6. Step 6: Final answer
    x = 1,497.89

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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.