Home / 2,774.13-4,161.80-1,042.75

Finding the Fourth Proportional to 2,774.13, 4,161.80 and 1,042.75

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Solution

The fourth proportional to 2,774.13, 4,161.80 and 1,042.75 is: 1,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.13 : 4,161.80 = 1,042.75 : x
  2. Step 2: Convert to fraction form
    2,774.13/4,161.80 = 1,042.75/x
  3. Step 3: Cross multiply
    2,774.13x = 4,161.80 × 1,042.75
  4. Step 4: Simplify right side
    2,774.13x = 4,339,716.95
  5. Step 5: Solve for x
    x = 4,339,716.95/2,774.13
  6. Step 6: Final answer
    x = 1,564.35

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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.