Home / 2,761.09-4,142.54-1,116.79

Finding the Fourth Proportional to 2,761.09, 4,142.54 and 1,116.79

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Solution

The fourth proportional to 2,761.09, 4,142.54 and 1,116.79 is: 1,675.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.09 : 4,142.54 = 1,116.79 : x
  2. Step 2: Convert to fraction form
    2,761.09/4,142.54 = 1,116.79/x
  3. Step 3: Cross multiply
    2,761.09x = 4,142.54 × 1,116.79
  4. Step 4: Simplify right side
    2,761.09x = 4,626,339.68
  5. Step 5: Solve for x
    x = 4,626,339.68/2,761.09
  6. Step 6: Final answer
    x = 1,675.55

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1.5x scale

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.