Home / 3,939.22-5,434.30-2,522.22

Finding the Fourth Proportional to 3,939.22, 5,434.30 and 2,522.22

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Solution

The fourth proportional to 3,939.22, 5,434.30 and 2,522.22 is: 3,479.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.22 : 5,434.30 = 2,522.22 : x
  2. Step 2: Convert to fraction form
    3,939.22/5,434.30 = 2,522.22/x
  3. Step 3: Cross multiply
    3,939.22x = 5,434.30 × 2,522.22
  4. Step 4: Simplify right side
    3,939.22x = 13,706,500.15
  5. Step 5: Solve for x
    x = 13,706,500.15/3,939.22
  6. Step 6: Final answer
    x = 3,479.50

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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.