Home / 3,322.40-4,987.11-2,445.90

Finding the Fourth Proportional to 3,322.40, 4,987.11 and 2,445.90

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Solution

The fourth proportional to 3,322.40, 4,987.11 and 2,445.90 is: 3,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,322.40 : 4,987.11 = 2,445.90 : x
  2. Step 2: Convert to fraction form
    3,322.40/4,987.11 = 2,445.90/x
  3. Step 3: Cross multiply
    3,322.40x = 4,987.11 × 2,445.90
  4. Step 4: Simplify right side
    3,322.40x = 12,197,972.35
  5. Step 5: Solve for x
    x = 12,197,972.35/3,322.40
  6. Step 6: Final answer
    x = 3,671.44

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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.