Home / 3,745.18-5,618.38-1,665.90

Finding the Fourth Proportional to 3,745.18, 5,618.38 and 1,665.90

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Solution

The fourth proportional to 3,745.18, 5,618.38 and 1,665.90 is: 2,499.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.18 : 5,618.38 = 1,665.90 : x
  2. Step 2: Convert to fraction form
    3,745.18/5,618.38 = 1,665.90/x
  3. Step 3: Cross multiply
    3,745.18x = 5,618.38 × 1,665.90
  4. Step 4: Simplify right side
    3,745.18x = 9,359,659.24
  5. Step 5: Solve for x
    x = 9,359,659.24/3,745.18
  6. Step 6: Final answer
    x = 2,499.12

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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.