Home / 3,610.38-5,415.72-1,145.14

Finding the Fourth Proportional to 3,610.38, 5,415.72 and 1,145.14

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Solution

The fourth proportional to 3,610.38, 5,415.72 and 1,145.14 is: 1,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.38 : 5,415.72 = 1,145.14 : x
  2. Step 2: Convert to fraction form
    3,610.38/5,415.72 = 1,145.14/x
  3. Step 3: Cross multiply
    3,610.38x = 5,415.72 × 1,145.14
  4. Step 4: Simplify right side
    3,610.38x = 6,201,757.60
  5. Step 5: Solve for x
    x = 6,201,757.60/3,610.38
  6. Step 6: Final answer
    x = 1,717.76

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1.5x scale

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.