Home / 1,569.76-2,167.28-1,275.73

Finding the Fourth Proportional to 1,569.76, 2,167.28 and 1,275.73

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Solution

The fourth proportional to 1,569.76, 2,167.28 and 1,275.73 is: 1,761.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569.76 : 2,167.28 = 1,275.73 : x
  2. Step 2: Convert to fraction form
    1,569.76/2,167.28 = 1,275.73/x
  3. Step 3: Cross multiply
    1,569.76x = 2,167.28 × 1,275.73
  4. Step 4: Simplify right side
    1,569.76x = 2,764,864.11
  5. Step 5: Solve for x
    x = 2,764,864.11/1,569.76
  6. Step 6: Final answer
    x = 1,761.33

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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.