Home / 3,610.78-5,416.19-1,145.60

Finding the Fourth Proportional to 3,610.78, 5,416.19 and 1,145.60

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Solution

The fourth proportional to 3,610.78, 5,416.19 and 1,145.60 is: 1,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,610.78 : 5,416.19 = 1,145.60 : x
  2. Step 2: Convert to fraction form
    3,610.78/5,416.19 = 1,145.60/x
  3. Step 3: Cross multiply
    3,610.78x = 5,416.19 × 1,145.60
  4. Step 4: Simplify right side
    3,610.78x = 6,204,787.26
  5. Step 5: Solve for x
    x = 6,204,787.26/3,610.78
  6. Step 6: Final answer
    x = 1,718.41

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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.