Home / 6,625.90-9,925.56-3,991.92

Finding the Fourth Proportional to 6,625.90, 9,925.56 and 3,991.92

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Solution

The fourth proportional to 6,625.90, 9,925.56 and 3,991.92 is: 5,979.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.90 : 9,925.56 = 3,991.92 : x
  2. Step 2: Convert to fraction form
    6,625.90/9,925.56 = 3,991.92/x
  3. Step 3: Cross multiply
    6,625.90x = 9,925.56 × 3,991.92
  4. Step 4: Simplify right side
    6,625.90x = 39,622,021.52
  5. Step 5: Solve for x
    x = 39,622,021.52/6,625.90
  6. Step 6: Final answer
    x = 5,979.87

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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.