Home / 2,783.28-3,837.66-2,221.95

Finding the Fourth Proportional to 2,783.28, 3,837.66 and 2,221.95

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Solution

The fourth proportional to 2,783.28, 3,837.66 and 2,221.95 is: 3,063.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.28 : 3,837.66 = 2,221.95 : x
  2. Step 2: Convert to fraction form
    2,783.28/3,837.66 = 2,221.95/x
  3. Step 3: Cross multiply
    2,783.28x = 3,837.66 × 2,221.95
  4. Step 4: Simplify right side
    2,783.28x = 8,527,058.34
  5. Step 5: Solve for x
    x = 8,527,058.34/2,783.28
  6. Step 6: Final answer
    x = 3,063.68

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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.