Home / 3,681.38-5,080.30-2,025.38

Finding the Fourth Proportional to 3,681.38, 5,080.30 and 2,025.38

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Solution

The fourth proportional to 3,681.38, 5,080.30 and 2,025.38 is: 2,795.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.38 : 5,080.30 = 2,025.38 : x
  2. Step 2: Convert to fraction form
    3,681.38/5,080.30 = 2,025.38/x
  3. Step 3: Cross multiply
    3,681.38x = 5,080.30 × 2,025.38
  4. Step 4: Simplify right side
    3,681.38x = 10,289,507.55
  5. Step 5: Solve for x
    x = 10,289,507.55/3,681.38
  6. Step 6: Final answer
    x = 2,795.02

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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.