Home / 7,713.80-11,575.89-3,331.70

Finding the Fourth Proportional to 7,713.80, 11,575.89 and 3,331.70

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Solution

The fourth proportional to 7,713.80, 11,575.89 and 3,331.70 is: 4,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.80 : 11,575.89 = 3,331.70 : x
  2. Step 2: Convert to fraction form
    7,713.80/11,575.89 = 3,331.70/x
  3. Step 3: Cross multiply
    7,713.80x = 11,575.89 × 3,331.70
  4. Step 4: Simplify right side
    7,713.80x = 38,567,334.83
  5. Step 5: Solve for x
    x = 38,567,334.83/7,713.80
  6. Step 6: Final answer
    x = 4,999.79

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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.