Home / 3,905.64-5,390.02-2,227.37

Finding the Fourth Proportional to 3,905.64, 5,390.02 and 2,227.37

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Solution

The fourth proportional to 3,905.64, 5,390.02 and 2,227.37 is: 3,073.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.64 : 5,390.02 = 2,227.37 : x
  2. Step 2: Convert to fraction form
    3,905.64/5,390.02 = 2,227.37/x
  3. Step 3: Cross multiply
    3,905.64x = 5,390.02 × 2,227.37
  4. Step 4: Simplify right side
    3,905.64x = 12,005,575.00
  5. Step 5: Solve for x
    x = 12,005,575.00/3,905.64
  6. Step 6: Final answer
    x = 3,073.91

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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.