Home / 2,874.24-3,963.84-2,087.04

Finding the Fourth Proportional to 2,874.24, 3,963.84 and 2,087.04

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Solution

The fourth proportional to 2,874.24, 3,963.84 and 2,087.04 is: 2,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.24 : 3,963.84 = 2,087.04 : x
  2. Step 2: Convert to fraction form
    2,874.24/3,963.84 = 2,087.04/x
  3. Step 3: Cross multiply
    2,874.24x = 3,963.84 × 2,087.04
  4. Step 4: Simplify right side
    2,874.24x = 8,272,692.63
  5. Step 5: Solve for x
    x = 8,272,692.63/2,874.24
  6. Step 6: Final answer
    x = 2,878.22

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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.