Home / 3,988.45-5,979.69-2,752.33

Finding the Fourth Proportional to 3,988.45, 5,979.69 and 2,752.33

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Solution

The fourth proportional to 3,988.45, 5,979.69 and 2,752.33 is: 4,126.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.45 : 5,979.69 = 2,752.33 : x
  2. Step 2: Convert to fraction form
    3,988.45/5,979.69 = 2,752.33/x
  3. Step 3: Cross multiply
    3,988.45x = 5,979.69 × 2,752.33
  4. Step 4: Simplify right side
    3,988.45x = 16,458,080.18
  5. Step 5: Solve for x
    x = 16,458,080.18/3,988.45
  6. Step 6: Final answer
    x = 4,126.44

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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.