Home / 7,868.92-11,803.40-2,932.80

Finding the Fourth Proportional to 7,868.92, 11,803.40 and 2,932.80

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Solution

The fourth proportional to 7,868.92, 11,803.40 and 2,932.80 is: 4,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.92 : 11,803.40 = 2,932.80 : x
  2. Step 2: Convert to fraction form
    7,868.92/11,803.40 = 2,932.80/x
  3. Step 3: Cross multiply
    7,868.92x = 11,803.40 × 2,932.80
  4. Step 4: Simplify right side
    7,868.92x = 34,617,011.52
  5. Step 5: Solve for x
    x = 34,617,011.52/7,868.92
  6. Step 6: Final answer
    x = 4,399.21

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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.