Home / 1,227.79-1,831.31-1,043.11

Finding the Fourth Proportional to 1,227.79, 1,831.31 and 1,043.11

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Solution

The fourth proportional to 1,227.79, 1,831.31 and 1,043.11 is: 1,555.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.79 : 1,831.31 = 1,043.11 : x
  2. Step 2: Convert to fraction form
    1,227.79/1,831.31 = 1,043.11/x
  3. Step 3: Cross multiply
    1,227.79x = 1,831.31 × 1,043.11
  4. Step 4: Simplify right side
    1,227.79x = 1,910,257.77
  5. Step 5: Solve for x
    x = 1,910,257.77/1,227.79
  6. Step 6: Final answer
    x = 1,555.85

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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.