Home / 7,119.55-9,824.14-3,932.66

Finding the Fourth Proportional to 7,119.55, 9,824.14 and 3,932.66

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Solution

The fourth proportional to 7,119.55, 9,824.14 and 3,932.66 is: 5,426.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.55 : 9,824.14 = 3,932.66 : x
  2. Step 2: Convert to fraction form
    7,119.55/9,824.14 = 3,932.66/x
  3. Step 3: Cross multiply
    7,119.55x = 9,824.14 × 3,932.66
  4. Step 4: Simplify right side
    7,119.55x = 38,635,002.41
  5. Step 5: Solve for x
    x = 38,635,002.41/7,119.55
  6. Step 6: Final answer
    x = 5,426.61

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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.