Home / 3,426.30-4,727.43-2,028.78

Finding the Fourth Proportional to 3,426.30, 4,727.43 and 2,028.78

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Solution

The fourth proportional to 3,426.30, 4,727.43 and 2,028.78 is: 2,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.30 : 4,727.43 = 2,028.78 : x
  2. Step 2: Convert to fraction form
    3,426.30/4,727.43 = 2,028.78/x
  3. Step 3: Cross multiply
    3,426.30x = 4,727.43 × 2,028.78
  4. Step 4: Simplify right side
    3,426.30x = 9,590,915.44
  5. Step 5: Solve for x
    x = 9,590,915.44/3,426.30
  6. Step 6: Final answer
    x = 2,799.20

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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.