Home / 7,739.44-11,607.68-2,191.45

Finding the Fourth Proportional to 7,739.44, 11,607.68 and 2,191.45

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Solution

The fourth proportional to 7,739.44, 11,607.68 and 2,191.45 is: 3,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.44 : 11,607.68 = 2,191.45 : x
  2. Step 2: Convert to fraction form
    7,739.44/11,607.68 = 2,191.45/x
  3. Step 3: Cross multiply
    7,739.44x = 11,607.68 × 2,191.45
  4. Step 4: Simplify right side
    7,739.44x = 25,437,650.34
  5. Step 5: Solve for x
    x = 25,437,650.34/7,739.44
  6. Step 6: Final answer
    x = 3,286.76

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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.