Home / 3,195.13-4,409.24-1,778.78

Finding the Fourth Proportional to 3,195.13, 4,409.24 and 1,778.78

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Solution

The fourth proportional to 3,195.13, 4,409.24 and 1,778.78 is: 2,454.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.13 : 4,409.24 = 1,778.78 : x
  2. Step 2: Convert to fraction form
    3,195.13/4,409.24 = 1,778.78/x
  3. Step 3: Cross multiply
    3,195.13x = 4,409.24 × 1,778.78
  4. Step 4: Simplify right side
    3,195.13x = 7,843,045.25
  5. Step 5: Solve for x
    x = 7,843,045.25/3,195.13
  6. Step 6: Final answer
    x = 2,454.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.