Home / 3,610.72-5,415.60-1,145.79

Finding the Fourth Proportional to 3,610.72, 5,415.60 and 1,145.79

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Solution

The fourth proportional to 3,610.72, 5,415.60 and 1,145.79 is: 1,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.72 : 5,415.60 = 1,145.79 : x
  2. Step 2: Convert to fraction form
    3,610.72/5,415.60 = 1,145.79/x
  3. Step 3: Cross multiply
    3,610.72x = 5,415.60 × 1,145.79
  4. Step 4: Simplify right side
    3,610.72x = 6,205,140.32
  5. Step 5: Solve for x
    x = 6,205,140.32/3,610.72
  6. Step 6: Final answer
    x = 1,718.53

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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.