Home / 2,454.80-3,380.22-2,115.82

Finding the Fourth Proportional to 2,454.80, 3,380.22 and 2,115.82

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Solution

The fourth proportional to 2,454.80, 3,380.22 and 2,115.82 is: 2,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,454.80 : 3,380.22 = 2,115.82 : x
  2. Step 2: Convert to fraction form
    2,454.80/3,380.22 = 2,115.82/x
  3. Step 3: Cross multiply
    2,454.80x = 3,380.22 × 2,115.82
  4. Step 4: Simplify right side
    2,454.80x = 7,151,937.08
  5. Step 5: Solve for x
    x = 7,151,937.08/2,454.80
  6. Step 6: Final answer
    x = 2,913.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.