Home / 3,125.47-4,305.83-2,179.54

Finding the Fourth Proportional to 3,125.47, 4,305.83 and 2,179.54

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Solution

The fourth proportional to 3,125.47, 4,305.83 and 2,179.54 is: 3,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.47 : 4,305.83 = 2,179.54 : x
  2. Step 2: Convert to fraction form
    3,125.47/4,305.83 = 2,179.54/x
  3. Step 3: Cross multiply
    3,125.47x = 4,305.83 × 2,179.54
  4. Step 4: Simplify right side
    3,125.47x = 9,384,728.72
  5. Step 5: Solve for x
    x = 9,384,728.72/3,125.47
  6. Step 6: Final answer
    x = 3,002.66

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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.