Home / 3,429.23-5,145.30-1,675.78

Finding the Fourth Proportional to 3,429.23, 5,145.30 and 1,675.78

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Solution

The fourth proportional to 3,429.23, 5,145.30 and 1,675.78 is: 2,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.23 : 5,145.30 = 1,675.78 : x
  2. Step 2: Convert to fraction form
    3,429.23/5,145.30 = 1,675.78/x
  3. Step 3: Cross multiply
    3,429.23x = 5,145.30 × 1,675.78
  4. Step 4: Simplify right side
    3,429.23x = 8,622,377.97
  5. Step 5: Solve for x
    x = 8,622,377.97/3,429.23
  6. Step 6: Final answer
    x = 2,514.38

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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.