Home / 3,422.10-5,133.65-1,081.57

Finding the Fourth Proportional to 3,422.10, 5,133.65 and 1,081.57

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Solution

The fourth proportional to 3,422.10, 5,133.65 and 1,081.57 is: 1,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.10 : 5,133.65 = 1,081.57 : x
  2. Step 2: Convert to fraction form
    3,422.10/5,133.65 = 1,081.57/x
  3. Step 3: Cross multiply
    3,422.10x = 5,133.65 × 1,081.57
  4. Step 4: Simplify right side
    3,422.10x = 5,552,401.62
  5. Step 5: Solve for x
    x = 5,552,401.62/3,422.10
  6. Step 6: Final answer
    x = 1,622.51

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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.