Home / 3,988.89-5,981.67-2,884.05

Finding the Fourth Proportional to 3,988.89, 5,981.67 and 2,884.05

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Solution

The fourth proportional to 3,988.89, 5,981.67 and 2,884.05 is: 4,324.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.89 : 5,981.67 = 2,884.05 : x
  2. Step 2: Convert to fraction form
    3,988.89/5,981.67 = 2,884.05/x
  3. Step 3: Cross multiply
    3,988.89x = 5,981.67 × 2,884.05
  4. Step 4: Simplify right side
    3,988.89x = 17,251,435.36
  5. Step 5: Solve for x
    x = 17,251,435.36/3,988.89
  6. Step 6: Final answer
    x = 4,324.87

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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.