Home / 4,121.77-5,684.95-2,862.83

Finding the Fourth Proportional to 4,121.77, 5,684.95 and 2,862.83

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Solution

The fourth proportional to 4,121.77, 5,684.95 and 2,862.83 is: 3,948.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.77 : 5,684.95 = 2,862.83 : x
  2. Step 2: Convert to fraction form
    4,121.77/5,684.95 = 2,862.83/x
  3. Step 3: Cross multiply
    4,121.77x = 5,684.95 × 2,862.83
  4. Step 4: Simplify right side
    4,121.77x = 16,275,045.41
  5. Step 5: Solve for x
    x = 16,275,045.41/4,121.77
  6. Step 6: Final answer
    x = 3,948.56

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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.