Home / 1,988.03-2,982.44-1,166.42

Finding the Fourth Proportional to 1,988.03, 2,982.44 and 1,166.42

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Solution

The fourth proportional to 1,988.03, 2,982.44 and 1,166.42 is: 1,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.03 : 2,982.44 = 1,166.42 : x
  2. Step 2: Convert to fraction form
    1,988.03/2,982.44 = 1,166.42/x
  3. Step 3: Cross multiply
    1,988.03x = 2,982.44 × 1,166.42
  4. Step 4: Simplify right side
    1,988.03x = 3,478,765.67
  5. Step 5: Solve for x
    x = 3,478,765.67/1,988.03
  6. Step 6: Final answer
    x = 1,749.86

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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.