Home / 3,378.12-4,660.47-2,257.28

Finding the Fourth Proportional to 3,378.12, 4,660.47 and 2,257.28

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Solution

The fourth proportional to 3,378.12, 4,660.47 and 2,257.28 is: 3,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.12 : 4,660.47 = 2,257.28 : x
  2. Step 2: Convert to fraction form
    3,378.12/4,660.47 = 2,257.28/x
  3. Step 3: Cross multiply
    3,378.12x = 4,660.47 × 2,257.28
  4. Step 4: Simplify right side
    3,378.12x = 10,519,974.44
  5. Step 5: Solve for x
    x = 10,519,974.44/3,378.12
  6. Step 6: Final answer
    x = 3,114.15

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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.