Home / 1,324.74-1,977.39-1,227

Finding the Fourth Proportional to 1,324.74, 1,977.39 and 1,227

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Solution

The fourth proportional to 1,324.74, 1,977.39 and 1,227 is: 1,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.74 : 1,977.39 = 1,227 : x
  2. Step 2: Convert to fraction form
    1,324.74/1,977.39 = 1,227/x
  3. Step 3: Cross multiply
    1,324.74x = 1,977.39 × 1,227
  4. Step 4: Simplify right side
    1,324.74x = 2,426,257.53
  5. Step 5: Solve for x
    x = 2,426,257.53/1,324.74
  6. Step 6: Final answer
    x = 1,831.50

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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.