Home / 3,905.74-5,390.06-2,227.42

Finding the Fourth Proportional to 3,905.74, 5,390.06 and 2,227.42

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Solution

The fourth proportional to 3,905.74, 5,390.06 and 2,227.42 is: 3,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.74 : 5,390.06 = 2,227.42 : x
  2. Step 2: Convert to fraction form
    3,905.74/5,390.06 = 2,227.42/x
  3. Step 3: Cross multiply
    3,905.74x = 5,390.06 × 2,227.42
  4. Step 4: Simplify right side
    3,905.74x = 12,005,927.45
  5. Step 5: Solve for x
    x = 12,005,927.45/3,905.74
  6. Step 6: Final answer
    x = 3,073.92

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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.