Home / 2,320.21-3,201.86-1,257.97

Finding the Fourth Proportional to 2,320.21, 3,201.86 and 1,257.97

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Solution

The fourth proportional to 2,320.21, 3,201.86 and 1,257.97 is: 1,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.21 : 3,201.86 = 1,257.97 : x
  2. Step 2: Convert to fraction form
    2,320.21/3,201.86 = 1,257.97/x
  3. Step 3: Cross multiply
    2,320.21x = 3,201.86 × 1,257.97
  4. Step 4: Simplify right side
    2,320.21x = 4,027,821.53
  5. Step 5: Solve for x
    x = 4,027,821.53/2,320.21
  6. Step 6: Final answer
    x = 1,735.98

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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.