Home / 2,936.75-4,042.98-2,272.55

Finding the Fourth Proportional to 2,936.75, 4,042.98 and 2,272.55

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Solution

The fourth proportional to 2,936.75, 4,042.98 and 2,272.55 is: 3,128.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.75 : 4,042.98 = 2,272.55 : x
  2. Step 2: Convert to fraction form
    2,936.75/4,042.98 = 2,272.55/x
  3. Step 3: Cross multiply
    2,936.75x = 4,042.98 × 2,272.55
  4. Step 4: Simplify right side
    2,936.75x = 9,187,853.98
  5. Step 5: Solve for x
    x = 9,187,853.98/2,936.75
  6. Step 6: Final answer
    x = 3,128.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.