Home / 3,438.24-5,166.48-1,879.20

Finding the Fourth Proportional to 3,438.24, 5,166.48 and 1,879.20

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Solution

The fourth proportional to 3,438.24, 5,166.48 and 1,879.20 is: 2,823.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.24 : 5,166.48 = 1,879.20 : x
  2. Step 2: Convert to fraction form
    3,438.24/5,166.48 = 1,879.20/x
  3. Step 3: Cross multiply
    3,438.24x = 5,166.48 × 1,879.20
  4. Step 4: Simplify right side
    3,438.24x = 9,708,849.22
  5. Step 5: Solve for x
    x = 9,708,849.22/3,438.24
  6. Step 6: Final answer
    x = 2,823.78

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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.