Home / 2,277.92-3,418.50-979.76

Finding the Fourth Proportional to 2,277.92, 3,418.50 and 979.76

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Solution

The fourth proportional to 2,277.92, 3,418.50 and 979.76 is: 1,470.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.92 : 3,418.50 = 979.76 : x
  2. Step 2: Convert to fraction form
    2,277.92/3,418.50 = 979.76/x
  3. Step 3: Cross multiply
    2,277.92x = 3,418.50 × 979.76
  4. Step 4: Simplify right side
    2,277.92x = 3,349,309.56
  5. Step 5: Solve for x
    x = 3,349,309.56/2,277.92
  6. Step 6: Final answer
    x = 1,470.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.