Home / 7,939.89-11,909.43-2,393.10

Finding the Fourth Proportional to 7,939.89, 11,909.43 and 2,393.10

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Solution

The fourth proportional to 7,939.89, 11,909.43 and 2,393.10 is: 3,589.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.89 : 11,909.43 = 2,393.10 : x
  2. Step 2: Convert to fraction form
    7,939.89/11,909.43 = 2,393.10/x
  3. Step 3: Cross multiply
    7,939.89x = 11,909.43 × 2,393.10
  4. Step 4: Simplify right side
    7,939.89x = 28,500,456.93
  5. Step 5: Solve for x
    x = 28,500,456.93/7,939.89
  6. Step 6: Final answer
    x = 3,589.53

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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.