Home / 7,747.89-10,691.79-4,211.03

Finding the Fourth Proportional to 7,747.89, 10,691.79 and 4,211.03

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Solution

The fourth proportional to 7,747.89, 10,691.79 and 4,211.03 is: 5,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.89 : 10,691.79 = 4,211.03 : x
  2. Step 2: Convert to fraction form
    7,747.89/10,691.79 = 4,211.03/x
  3. Step 3: Cross multiply
    7,747.89x = 10,691.79 × 4,211.03
  4. Step 4: Simplify right side
    7,747.89x = 45,023,394.98
  5. Step 5: Solve for x
    x = 45,023,394.98/7,747.89
  6. Step 6: Final answer
    x = 5,811.05

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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.