Home / 7,319.27-10,979.17-3,422.63

Finding the Fourth Proportional to 7,319.27, 10,979.17 and 3,422.63

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Solution

The fourth proportional to 7,319.27, 10,979.17 and 3,422.63 is: 5,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.27 : 10,979.17 = 3,422.63 : x
  2. Step 2: Convert to fraction form
    7,319.27/10,979.17 = 3,422.63/x
  3. Step 3: Cross multiply
    7,319.27x = 10,979.17 × 3,422.63
  4. Step 4: Simplify right side
    7,319.27x = 37,577,636.62
  5. Step 5: Solve for x
    x = 37,577,636.62/7,319.27
  6. Step 6: Final answer
    x = 5,134.07

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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.