Home / 2,757.50-3,808.60-1,824.38

Finding the Fourth Proportional to 2,757.50, 3,808.60 and 1,824.38

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Solution

The fourth proportional to 2,757.50, 3,808.60 and 1,824.38 is: 2,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.50 : 3,808.60 = 1,824.38 : x
  2. Step 2: Convert to fraction form
    2,757.50/3,808.60 = 1,824.38/x
  3. Step 3: Cross multiply
    2,757.50x = 3,808.60 × 1,824.38
  4. Step 4: Simplify right side
    2,757.50x = 6,948,333.67
  5. Step 5: Solve for x
    x = 6,948,333.67/2,757.50
  6. Step 6: Final answer
    x = 2,519.79

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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.