Home / 2,775.39-4,161.20-1,042.53

Finding the Fourth Proportional to 2,775.39, 4,161.20 and 1,042.53

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Solution

The fourth proportional to 2,775.39, 4,161.20 and 1,042.53 is: 1,563.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.39 : 4,161.20 = 1,042.53 : x
  2. Step 2: Convert to fraction form
    2,775.39/4,161.20 = 1,042.53/x
  3. Step 3: Cross multiply
    2,775.39x = 4,161.20 × 1,042.53
  4. Step 4: Simplify right side
    2,775.39x = 4,338,170.62
  5. Step 5: Solve for x
    x = 4,338,170.62/2,775.39
  6. Step 6: Final answer
    x = 1,563.09

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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.