Home / 3,611.27-4,978.10-2,823.95

Finding the Fourth Proportional to 3,611.27, 4,978.10 and 2,823.95

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Solution

The fourth proportional to 3,611.27, 4,978.10 and 2,823.95 is: 3,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.27 : 4,978.10 = 2,823.95 : x
  2. Step 2: Convert to fraction form
    3,611.27/4,978.10 = 2,823.95/x
  3. Step 3: Cross multiply
    3,611.27x = 4,978.10 × 2,823.95
  4. Step 4: Simplify right side
    3,611.27x = 14,057,866.48
  5. Step 5: Solve for x
    x = 14,057,866.48/3,611.27
  6. Step 6: Final answer
    x = 3,892.78

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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.