Home / 3,042.18-4,199.04-1,979.91

Finding the Fourth Proportional to 3,042.18, 4,199.04 and 1,979.91

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Solution

The fourth proportional to 3,042.18, 4,199.04 and 1,979.91 is: 2,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,042.18 : 4,199.04 = 1,979.91 : x
  2. Step 2: Convert to fraction form
    3,042.18/4,199.04 = 1,979.91/x
  3. Step 3: Cross multiply
    3,042.18x = 4,199.04 × 1,979.91
  4. Step 4: Simplify right side
    3,042.18x = 8,313,721.29
  5. Step 5: Solve for x
    x = 8,313,721.29/3,042.18
  6. Step 6: Final answer
    x = 2,732.82

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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.