Home / 3,278.40-4,521.16-2,441.20

Finding the Fourth Proportional to 3,278.40, 4,521.16 and 2,441.20

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Solution

The fourth proportional to 3,278.40, 4,521.16 and 2,441.20 is: 3,366.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.40 : 4,521.16 = 2,441.20 : x
  2. Step 2: Convert to fraction form
    3,278.40/4,521.16 = 2,441.20/x
  3. Step 3: Cross multiply
    3,278.40x = 4,521.16 × 2,441.20
  4. Step 4: Simplify right side
    3,278.40x = 11,037,055.79
  5. Step 5: Solve for x
    x = 11,037,055.79/3,278.40
  6. Step 6: Final answer
    x = 3,366.60

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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.