Home / 2,979.97-4,108.56-2,446.90

Finding the Fourth Proportional to 2,979.97, 4,108.56 and 2,446.90

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Solution

The fourth proportional to 2,979.97, 4,108.56 and 2,446.90 is: 3,373.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.97 : 4,108.56 = 2,446.90 : x
  2. Step 2: Convert to fraction form
    2,979.97/4,108.56 = 2,446.90/x
  3. Step 3: Cross multiply
    2,979.97x = 4,108.56 × 2,446.90
  4. Step 4: Simplify right side
    2,979.97x = 10,053,235.46
  5. Step 5: Solve for x
    x = 10,053,235.46/2,979.97
  6. Step 6: Final answer
    x = 3,373.60

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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.