Home / 2,979.47-4,107.15-2,348.88

Finding the Fourth Proportional to 2,979.47, 4,107.15 and 2,348.88

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Solution

The fourth proportional to 2,979.47, 4,107.15 and 2,348.88 is: 3,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.47 : 4,107.15 = 2,348.88 : x
  2. Step 2: Convert to fraction form
    2,979.47/4,107.15 = 2,348.88/x
  3. Step 3: Cross multiply
    2,979.47x = 4,107.15 × 2,348.88
  4. Step 4: Simplify right side
    2,979.47x = 9,647,202.49
  5. Step 5: Solve for x
    x = 9,647,202.49/2,979.47
  6. Step 6: Final answer
    x = 3,237.90

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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.