Home / 3,182.60-4,390.62-2,189.18

Finding the Fourth Proportional to 3,182.60, 4,390.62 and 2,189.18

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Solution

The fourth proportional to 3,182.60, 4,390.62 and 2,189.18 is: 3,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.60 : 4,390.62 = 2,189.18 : x
  2. Step 2: Convert to fraction form
    3,182.60/4,390.62 = 2,189.18/x
  3. Step 3: Cross multiply
    3,182.60x = 4,390.62 × 2,189.18
  4. Step 4: Simplify right side
    3,182.60x = 9,611,857.49
  5. Step 5: Solve for x
    x = 9,611,857.49/3,182.60
  6. Step 6: Final answer
    x = 3,020.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.