Home / 2,451.60-3,677.97-720.36

Finding the Fourth Proportional to 2,451.60, 3,677.97 and 720.36

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Solution

The fourth proportional to 2,451.60, 3,677.97 and 720.36 is: 1,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.60 : 3,677.97 = 720.36 : x
  2. Step 2: Convert to fraction form
    2,451.60/3,677.97 = 720.36/x
  3. Step 3: Cross multiply
    2,451.60x = 3,677.97 × 720.36
  4. Step 4: Simplify right side
    2,451.60x = 2,649,462.47
  5. Step 5: Solve for x
    x = 2,649,462.47/2,451.60
  6. Step 6: Final answer
    x = 1,080.71

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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.