Home / 3,890.42-5,367.25-2,395.75

Finding the Fourth Proportional to 3,890.42, 5,367.25 and 2,395.75

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Solution

The fourth proportional to 3,890.42, 5,367.25 and 2,395.75 is: 3,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.42 : 5,367.25 = 2,395.75 : x
  2. Step 2: Convert to fraction form
    3,890.42/5,367.25 = 2,395.75/x
  3. Step 3: Cross multiply
    3,890.42x = 5,367.25 × 2,395.75
  4. Step 4: Simplify right side
    3,890.42x = 12,858,581.76
  5. Step 5: Solve for x
    x = 12,858,581.76/3,890.42
  6. Step 6: Final answer
    x = 3,305.19

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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.