Home / 3,447.73-4,758.02-2,121.88

Finding the Fourth Proportional to 3,447.73, 4,758.02 and 2,121.88

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Solution

The fourth proportional to 3,447.73, 4,758.02 and 2,121.88 is: 2,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.73 : 4,758.02 = 2,121.88 : x
  2. Step 2: Convert to fraction form
    3,447.73/4,758.02 = 2,121.88/x
  3. Step 3: Cross multiply
    3,447.73x = 4,758.02 × 2,121.88
  4. Step 4: Simplify right side
    3,447.73x = 10,095,947.48
  5. Step 5: Solve for x
    x = 10,095,947.48/3,447.73
  6. Step 6: Final answer
    x = 2,928.29

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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.