Home / 2,252.80-3,106.92-2,121.58

Finding the Fourth Proportional to 2,252.80, 3,106.92 and 2,121.58

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Solution

The fourth proportional to 2,252.80, 3,106.92 and 2,121.58 is: 2,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.80 : 3,106.92 = 2,121.58 : x
  2. Step 2: Convert to fraction form
    2,252.80/3,106.92 = 2,121.58/x
  3. Step 3: Cross multiply
    2,252.80x = 3,106.92 × 2,121.58
  4. Step 4: Simplify right side
    2,252.80x = 6,591,579.33
  5. Step 5: Solve for x
    x = 6,591,579.33/2,252.80
  6. Step 6: Final answer
    x = 2,925.95

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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.