Home / 1,277.44-1,761.28-1,160.96

Finding the Fourth Proportional to 1,277.44, 1,761.28 and 1,160.96

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Solution

The fourth proportional to 1,277.44, 1,761.28 and 1,160.96 is: 1,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.44 : 1,761.28 = 1,160.96 : x
  2. Step 2: Convert to fraction form
    1,277.44/1,761.28 = 1,160.96/x
  3. Step 3: Cross multiply
    1,277.44x = 1,761.28 × 1,160.96
  4. Step 4: Simplify right side
    1,277.44x = 2,044,775.63
  5. Step 5: Solve for x
    x = 2,044,775.63/1,277.44
  6. Step 6: Final answer
    x = 1,600.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.