Home / 6,625.20-9,138.70-3,934.59

Finding the Fourth Proportional to 6,625.20, 9,138.70 and 3,934.59

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Solution

The fourth proportional to 6,625.20, 9,138.70 and 3,934.59 is: 5,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.20 : 9,138.70 = 3,934.59 : x
  2. Step 2: Convert to fraction form
    6,625.20/9,138.70 = 3,934.59/x
  3. Step 3: Cross multiply
    6,625.20x = 9,138.70 × 3,934.59
  4. Step 4: Simplify right side
    6,625.20x = 35,957,037.63
  5. Step 5: Solve for x
    x = 35,957,037.63/6,625.20
  6. Step 6: Final answer
    x = 5,427.31

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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.