Home / 3,610.89-5,416.38-1,145.70

Finding the Fourth Proportional to 3,610.89, 5,416.38 and 1,145.70

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Solution

The fourth proportional to 3,610.89, 5,416.38 and 1,145.70 is: 1,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.89 : 5,416.38 = 1,145.70 : x
  2. Step 2: Convert to fraction form
    3,610.89/5,416.38 = 1,145.70/x
  3. Step 3: Cross multiply
    3,610.89x = 5,416.38 × 1,145.70
  4. Step 4: Simplify right side
    3,610.89x = 6,205,546.57
  5. Step 5: Solve for x
    x = 6,205,546.57/3,610.89
  6. Step 6: Final answer
    x = 1,718.56

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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.