Home / 4,125.90-5,695.92-3,179.61

Finding the Fourth Proportional to 4,125.90, 5,695.92 and 3,179.61

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Solution

The fourth proportional to 4,125.90, 5,695.92 and 3,179.61 is: 4,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125.90 : 5,695.92 = 3,179.61 : x
  2. Step 2: Convert to fraction form
    4,125.90/5,695.92 = 3,179.61/x
  3. Step 3: Cross multiply
    4,125.90x = 5,695.92 × 3,179.61
  4. Step 4: Simplify right side
    4,125.90x = 18,110,804.19
  5. Step 5: Solve for x
    x = 18,110,804.19/4,125.90
  6. Step 6: Final answer
    x = 4,389.54

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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.