Home / 2,299.88-3,172.42-2,005.85

Finding the Fourth Proportional to 2,299.88, 3,172.42 and 2,005.85

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Solution

The fourth proportional to 2,299.88, 3,172.42 and 2,005.85 is: 2,766.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.88 : 3,172.42 = 2,005.85 : x
  2. Step 2: Convert to fraction form
    2,299.88/3,172.42 = 2,005.85/x
  3. Step 3: Cross multiply
    2,299.88x = 3,172.42 × 2,005.85
  4. Step 4: Simplify right side
    2,299.88x = 6,363,398.66
  5. Step 5: Solve for x
    x = 6,363,398.66/2,299.88
  6. Step 6: Final answer
    x = 2,766.84

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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.