Home / 2,039.65-3,057.45-998.80

Finding the Fourth Proportional to 2,039.65, 3,057.45 and 998.80

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Solution

The fourth proportional to 2,039.65, 3,057.45 and 998.80 is: 1,497.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.65 : 3,057.45 = 998.80 : x
  2. Step 2: Convert to fraction form
    2,039.65/3,057.45 = 998.80/x
  3. Step 3: Cross multiply
    2,039.65x = 3,057.45 × 998.80
  4. Step 4: Simplify right side
    2,039.65x = 3,053,781.06
  5. Step 5: Solve for x
    x = 3,053,781.06/2,039.65
  6. Step 6: Final answer
    x = 1,497.21

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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.