Home / 2,743.60-4,115.40-2,281.90

Finding the Fourth Proportional to 2,743.60, 4,115.40 and 2,281.90

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Solution

The fourth proportional to 2,743.60, 4,115.40 and 2,281.90 is: 3,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.60 : 4,115.40 = 2,281.90 : x
  2. Step 2: Convert to fraction form
    2,743.60/4,115.40 = 2,281.90/x
  3. Step 3: Cross multiply
    2,743.60x = 4,115.40 × 2,281.90
  4. Step 4: Simplify right side
    2,743.60x = 9,390,931.26
  5. Step 5: Solve for x
    x = 9,390,931.26/2,743.60
  6. Step 6: Final answer
    x = 3,422.85

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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.