Home / 2,278.32-3,417.24-612.62

Finding the Fourth Proportional to 2,278.32, 3,417.24 and 612.62

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Solution

The fourth proportional to 2,278.32, 3,417.24 and 612.62 is: 918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.32 : 3,417.24 = 612.62 : x
  2. Step 2: Convert to fraction form
    2,278.32/3,417.24 = 612.62/x
  3. Step 3: Cross multiply
    2,278.32x = 3,417.24 × 612.62
  4. Step 4: Simplify right side
    2,278.32x = 2,093,469.57
  5. Step 5: Solve for x
    x = 2,093,469.57/2,278.32
  6. Step 6: Final answer
    x = 918.87

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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.