Home / 4,120.97-5,687.35-2,442.65

Finding the Fourth Proportional to 4,120.97, 5,687.35 and 2,442.65

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Solution

The fourth proportional to 4,120.97, 5,687.35 and 2,442.65 is: 3,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.97 : 5,687.35 = 2,442.65 : x
  2. Step 2: Convert to fraction form
    4,120.97/5,687.35 = 2,442.65/x
  3. Step 3: Cross multiply
    4,120.97x = 5,687.35 × 2,442.65
  4. Step 4: Simplify right side
    4,120.97x = 13,892,170.93
  5. Step 5: Solve for x
    x = 13,892,170.93/4,120.97
  6. Step 6: Final answer
    x = 3,371.10

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1.5x scale

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.