Home / 3,282.80-4,931.40-2,422.64

Finding the Fourth Proportional to 3,282.80, 4,931.40 and 2,422.64

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Solution

The fourth proportional to 3,282.80, 4,931.40 and 2,422.64 is: 3,639.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,282.80 : 4,931.40 = 2,422.64 : x
  2. Step 2: Convert to fraction form
    3,282.80/4,931.40 = 2,422.64/x
  3. Step 3: Cross multiply
    3,282.80x = 4,931.40 × 2,422.64
  4. Step 4: Simplify right side
    3,282.80x = 11,947,006.90
  5. Step 5: Solve for x
    x = 11,947,006.90/3,282.80
  6. Step 6: Final answer
    x = 3,639.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.