Home / 7,119.18-9,824.62-3,932.47

Finding the Fourth Proportional to 7,119.18, 9,824.62 and 3,932.47

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Solution

The fourth proportional to 7,119.18, 9,824.62 and 3,932.47 is: 5,426.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.18 : 9,824.62 = 3,932.47 : x
  2. Step 2: Convert to fraction form
    7,119.18/9,824.62 = 3,932.47/x
  3. Step 3: Cross multiply
    7,119.18x = 9,824.62 × 3,932.47
  4. Step 4: Simplify right side
    7,119.18x = 38,634,989.02
  5. Step 5: Solve for x
    x = 38,634,989.02/7,119.18
  6. Step 6: Final answer
    x = 5,426.89

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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.