Home / 6,660.80-9,988.32-2,041.28

Finding the Fourth Proportional to 6,660.80, 9,988.32 and 2,041.28

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Solution

The fourth proportional to 6,660.80, 9,988.32 and 2,041.28 is: 3,061.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,660.80 : 9,988.32 = 2,041.28 : x
  2. Step 2: Convert to fraction form
    6,660.80/9,988.32 = 2,041.28/x
  3. Step 3: Cross multiply
    6,660.80x = 9,988.32 × 2,041.28
  4. Step 4: Simplify right side
    6,660.80x = 20,388,957.85
  5. Step 5: Solve for x
    x = 20,388,957.85/6,660.80
  6. Step 6: Final answer
    x = 3,061.04

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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.