Home / 3,874.73-5,347.18-2,106.34

Finding the Fourth Proportional to 3,874.73, 5,347.18 and 2,106.34

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Solution

The fourth proportional to 3,874.73, 5,347.18 and 2,106.34 is: 2,906.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.73 : 5,347.18 = 2,106.34 : x
  2. Step 2: Convert to fraction form
    3,874.73/5,347.18 = 2,106.34/x
  3. Step 3: Cross multiply
    3,874.73x = 5,347.18 × 2,106.34
  4. Step 4: Simplify right side
    3,874.73x = 11,262,957.65
  5. Step 5: Solve for x
    x = 11,262,957.65/3,874.73
  6. Step 6: Final answer
    x = 2,906.77

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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.