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Finding the Fourth Proportional to 2,425.60, 3,627.60 and 2,036.80

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Solution

The fourth proportional to 2,425.60, 3,627.60 and 2,036.80 is: 3,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.60 : 3,627.60 = 2,036.80 : x
  2. Step 2: Convert to fraction form
    2,425.60/3,627.60 = 2,036.80/x
  3. Step 3: Cross multiply
    2,425.60x = 3,627.60 × 2,036.80
  4. Step 4: Simplify right side
    2,425.60x = 7,388,695.68
  5. Step 5: Solve for x
    x = 7,388,695.68/2,425.60
  6. Step 6: Final answer
    x = 3,046.13

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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.