Home / 1,227.08-1,831.62-1,082.90

Finding the Fourth Proportional to 1,227.08, 1,831.62 and 1,082.90

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Solution

The fourth proportional to 1,227.08, 1,831.62 and 1,082.90 is: 1,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227.08 : 1,831.62 = 1,082.90 : x
  2. Step 2: Convert to fraction form
    1,227.08/1,831.62 = 1,082.90/x
  3. Step 3: Cross multiply
    1,227.08x = 1,831.62 × 1,082.90
  4. Step 4: Simplify right side
    1,227.08x = 1,983,463.85
  5. Step 5: Solve for x
    x = 1,983,463.85/1,227.08
  6. Step 6: Final answer
    x = 1,616.41

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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.