Home / 3,867.94-5,340.19-2,543.89

Finding the Fourth Proportional to 3,867.94, 5,340.19 and 2,543.89

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Solution

The fourth proportional to 3,867.94, 5,340.19 and 2,543.89 is: 3,512.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.94 : 5,340.19 = 2,543.89 : x
  2. Step 2: Convert to fraction form
    3,867.94/5,340.19 = 2,543.89/x
  3. Step 3: Cross multiply
    3,867.94x = 5,340.19 × 2,543.89
  4. Step 4: Simplify right side
    3,867.94x = 13,584,855.94
  5. Step 5: Solve for x
    x = 13,584,855.94/3,867.94
  6. Step 6: Final answer
    x = 3,512.17

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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.