Home / 2,868.35-3,958.26-1,609.38

Finding the Fourth Proportional to 2,868.35, 3,958.26 and 1,609.38

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Solution

The fourth proportional to 2,868.35, 3,958.26 and 1,609.38 is: 2,220.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.35 : 3,958.26 = 1,609.38 : x
  2. Step 2: Convert to fraction form
    2,868.35/3,958.26 = 1,609.38/x
  3. Step 3: Cross multiply
    2,868.35x = 3,958.26 × 1,609.38
  4. Step 4: Simplify right side
    2,868.35x = 6,370,344.48
  5. Step 5: Solve for x
    x = 6,370,344.48/2,868.35
  6. Step 6: Final answer
    x = 2,220.91

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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.