Home / 7,079.26-9,769.49-3,892.70

Finding the Fourth Proportional to 7,079.26, 9,769.49 and 3,892.70

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Solution

The fourth proportional to 7,079.26, 9,769.49 and 3,892.70 is: 5,371.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.26 : 9,769.49 = 3,892.70 : x
  2. Step 2: Convert to fraction form
    7,079.26/9,769.49 = 3,892.70/x
  3. Step 3: Cross multiply
    7,079.26x = 9,769.49 × 3,892.70
  4. Step 4: Simplify right side
    7,079.26x = 38,029,666.49
  5. Step 5: Solve for x
    x = 38,029,666.49/7,079.26
  6. Step 6: Final answer
    x = 5,371.98

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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.