Home / 3,476.21-4,797.63-1,983.78

Finding the Fourth Proportional to 3,476.21, 4,797.63 and 1,983.78

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Solution

The fourth proportional to 3,476.21, 4,797.63 and 1,983.78 is: 2,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.21 : 4,797.63 = 1,983.78 : x
  2. Step 2: Convert to fraction form
    3,476.21/4,797.63 = 1,983.78/x
  3. Step 3: Cross multiply
    3,476.21x = 4,797.63 × 1,983.78
  4. Step 4: Simplify right side
    3,476.21x = 9,517,442.44
  5. Step 5: Solve for x
    x = 9,517,442.44/3,476.21
  6. Step 6: Final answer
    x = 2,737.88

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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.