Home / 3,946.12-5,445.06-2,177.80

Finding the Fourth Proportional to 3,946.12, 5,445.06 and 2,177.80

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Solution

The fourth proportional to 3,946.12, 5,445.06 and 2,177.80 is: 3,005.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.12 : 5,445.06 = 2,177.80 : x
  2. Step 2: Convert to fraction form
    3,946.12/5,445.06 = 2,177.80/x
  3. Step 3: Cross multiply
    3,946.12x = 5,445.06 × 2,177.80
  4. Step 4: Simplify right side
    3,946.12x = 11,858,251.67
  5. Step 5: Solve for x
    x = 11,858,251.67/3,946.12
  6. Step 6: Final answer
    x = 3,005.04

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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.