Home / 2,775.20-4,162.82-1,042.60

Finding the Fourth Proportional to 2,775.20, 4,162.82 and 1,042.60

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Solution

The fourth proportional to 2,775.20, 4,162.82 and 1,042.60 is: 1,563.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.20 : 4,162.82 = 1,042.60 : x
  2. Step 2: Convert to fraction form
    2,775.20/4,162.82 = 1,042.60/x
  3. Step 3: Cross multiply
    2,775.20x = 4,162.82 × 1,042.60
  4. Step 4: Simplify right side
    2,775.20x = 4,340,156.13
  5. Step 5: Solve for x
    x = 4,340,156.13/2,775.20
  6. Step 6: Final answer
    x = 1,563.91

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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.