Home / 2,851.98-3,937.90-2,144.84

Finding the Fourth Proportional to 2,851.98, 3,937.90 and 2,144.84

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Solution

The fourth proportional to 2,851.98, 3,937.90 and 2,144.84 is: 2,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.98 : 3,937.90 = 2,144.84 : x
  2. Step 2: Convert to fraction form
    2,851.98/3,937.90 = 2,144.84/x
  3. Step 3: Cross multiply
    2,851.98x = 3,937.90 × 2,144.84
  4. Step 4: Simplify right side
    2,851.98x = 8,446,165.44
  5. Step 5: Solve for x
    x = 8,446,165.44/2,851.98
  6. Step 6: Final answer
    x = 2,961.51

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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.