Home / 3,744.12-5,615.87-1,990.07

Finding the Fourth Proportional to 3,744.12, 5,615.87 and 1,990.07

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Solution

The fourth proportional to 3,744.12, 5,615.87 and 1,990.07 is: 2,984.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,744.12 : 5,615.87 = 1,990.07 : x
  2. Step 2: Convert to fraction form
    3,744.12/5,615.87 = 1,990.07/x
  3. Step 3: Cross multiply
    3,744.12x = 5,615.87 × 1,990.07
  4. Step 4: Simplify right side
    3,744.12x = 11,175,936.38
  5. Step 5: Solve for x
    x = 11,175,936.38/3,744.12
  6. Step 6: Final answer
    x = 2,984.93

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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.