Home / 3,332.40-4,993.20-2,781.60

Finding the Fourth Proportional to 3,332.40, 4,993.20 and 2,781.60

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Solution

The fourth proportional to 3,332.40, 4,993.20 and 2,781.60 is: 4,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.40 : 4,993.20 = 2,781.60 : x
  2. Step 2: Convert to fraction form
    3,332.40/4,993.20 = 2,781.60/x
  3. Step 3: Cross multiply
    3,332.40x = 4,993.20 × 2,781.60
  4. Step 4: Simplify right side
    3,332.40x = 13,889,085.12
  5. Step 5: Solve for x
    x = 13,889,085.12/3,332.40
  6. Step 6: Final answer
    x = 4,167.89

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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.