Home / 6,979.13-9,630.11-4,146.43

Finding the Fourth Proportional to 6,979.13, 9,630.11 and 4,146.43

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Solution

The fourth proportional to 6,979.13, 9,630.11 and 4,146.43 is: 5,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.13 : 9,630.11 = 4,146.43 : x
  2. Step 2: Convert to fraction form
    6,979.13/9,630.11 = 4,146.43/x
  3. Step 3: Cross multiply
    6,979.13x = 9,630.11 × 4,146.43
  4. Step 4: Simplify right side
    6,979.13x = 39,930,552.93
  5. Step 5: Solve for x
    x = 39,930,552.93/6,979.13
  6. Step 6: Final answer
    x = 5,721.42

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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.