Home / 1,988.33-2,983.56-1,168.20

Finding the Fourth Proportional to 1,988.33, 2,983.56 and 1,168.20

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Solution

The fourth proportional to 1,988.33, 2,983.56 and 1,168.20 is: 1,752.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.33 : 2,983.56 = 1,168.20 : x
  2. Step 2: Convert to fraction form
    1,988.33/2,983.56 = 1,168.20/x
  3. Step 3: Cross multiply
    1,988.33x = 2,983.56 × 1,168.20
  4. Step 4: Simplify right side
    1,988.33x = 3,485,394.79
  5. Step 5: Solve for x
    x = 3,485,394.79/1,988.33
  6. Step 6: Final answer
    x = 1,752.93

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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.