Home / 7,660.24-11,490.40-2,113.88

Finding the Fourth Proportional to 7,660.24, 11,490.40 and 2,113.88

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Solution

The fourth proportional to 7,660.24, 11,490.40 and 2,113.88 is: 3,170.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.24 : 11,490.40 = 2,113.88 : x
  2. Step 2: Convert to fraction form
    7,660.24/11,490.40 = 2,113.88/x
  3. Step 3: Cross multiply
    7,660.24x = 11,490.40 × 2,113.88
  4. Step 4: Simplify right side
    7,660.24x = 24,289,326.75
  5. Step 5: Solve for x
    x = 24,289,326.75/7,660.24
  6. Step 6: Final answer
    x = 3,170.83

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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.