Home / 2,321.98-3,488.66-1,489.40

Finding the Fourth Proportional to 2,321.98, 3,488.66 and 1,489.40

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Solution

The fourth proportional to 2,321.98, 3,488.66 and 1,489.40 is: 2,237.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.98 : 3,488.66 = 1,489.40 : x
  2. Step 2: Convert to fraction form
    2,321.98/3,488.66 = 1,489.40/x
  3. Step 3: Cross multiply
    2,321.98x = 3,488.66 × 1,489.40
  4. Step 4: Simplify right side
    2,321.98x = 5,195,996.48
  5. Step 5: Solve for x
    x = 5,195,996.48/2,321.98
  6. Step 6: Final answer
    x = 2,237.75

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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.