Home / 7,979.19-11,968.77-3,591.52

Finding the Fourth Proportional to 7,979.19, 11,968.77 and 3,591.52

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Solution

The fourth proportional to 7,979.19, 11,968.77 and 3,591.52 is: 5,387.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.19 : 11,968.77 = 3,591.52 : x
  2. Step 2: Convert to fraction form
    7,979.19/11,968.77 = 3,591.52/x
  3. Step 3: Cross multiply
    7,979.19x = 11,968.77 × 3,591.52
  4. Step 4: Simplify right side
    7,979.19x = 42,986,060.38
  5. Step 5: Solve for x
    x = 42,986,060.38/7,979.19
  6. Step 6: Final answer
    x = 5,387.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.