Home / 2,279.02-3,418.56-613.23

Finding the Fourth Proportional to 2,279.02, 3,418.56 and 613.23

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Solution

The fourth proportional to 2,279.02, 3,418.56 and 613.23 is: 919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279.02 : 3,418.56 = 613.23 : x
  2. Step 2: Convert to fraction form
    2,279.02/3,418.56 = 613.23/x
  3. Step 3: Cross multiply
    2,279.02x = 3,418.56 × 613.23
  4. Step 4: Simplify right side
    2,279.02x = 2,096,363.55
  5. Step 5: Solve for x
    x = 2,096,363.55/2,279.02
  6. Step 6: Final answer
    x = 919.85

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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.