Home / 3,438.08-5,161.40-3,422.28

Finding the Fourth Proportional to 3,438.08, 5,161.40 and 3,422.28

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Solution

The fourth proportional to 3,438.08, 5,161.40 and 3,422.28 is: 5,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.08 : 5,161.40 = 3,422.28 : x
  2. Step 2: Convert to fraction form
    3,438.08/5,161.40 = 3,422.28/x
  3. Step 3: Cross multiply
    3,438.08x = 5,161.40 × 3,422.28
  4. Step 4: Simplify right side
    3,438.08x = 17,663,738.88
  5. Step 5: Solve for x
    x = 17,663,738.88/3,438.08
  6. Step 6: Final answer
    x = 5,137.68

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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.