Home / 7,739.49-11,607.48-2,191.56

Finding the Fourth Proportional to 7,739.49, 11,607.48 and 2,191.56

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Solution

The fourth proportional to 7,739.49, 11,607.48 and 2,191.56 is: 3,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,739.49 : 11,607.48 = 2,191.56 : x
  2. Step 2: Convert to fraction form
    7,739.49/11,607.48 = 2,191.56/x
  3. Step 3: Cross multiply
    7,739.49x = 11,607.48 × 2,191.56
  4. Step 4: Simplify right side
    7,739.49x = 25,438,488.87
  5. Step 5: Solve for x
    x = 25,438,488.87/7,739.49
  6. Step 6: Final answer
    x = 3,286.84

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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.