Home / 3,850.12-5,775.18-1,540

Finding the Fourth Proportional to 3,850.12, 5,775.18 and 1,540

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Solution

The fourth proportional to 3,850.12, 5,775.18 and 1,540 is: 2,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.12 : 5,775.18 = 1,540 : x
  2. Step 2: Convert to fraction form
    3,850.12/5,775.18 = 1,540/x
  3. Step 3: Cross multiply
    3,850.12x = 5,775.18 × 1,540
  4. Step 4: Simplify right side
    3,850.12x = 8,893,777.20
  5. Step 5: Solve for x
    x = 8,893,777.20/3,850.12
  6. Step 6: Final answer
    x = 2,310.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.