Home / 3,155.06-4,355.44-2,315.82

Finding the Fourth Proportional to 3,155.06, 4,355.44 and 2,315.82

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Solution

The fourth proportional to 3,155.06, 4,355.44 and 2,315.82 is: 3,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.06 : 4,355.44 = 2,315.82 : x
  2. Step 2: Convert to fraction form
    3,155.06/4,355.44 = 2,315.82/x
  3. Step 3: Cross multiply
    3,155.06x = 4,355.44 × 2,315.82
  4. Step 4: Simplify right side
    3,155.06x = 10,086,415.06
  5. Step 5: Solve for x
    x = 10,086,415.06/3,155.06
  6. Step 6: Final answer
    x = 3,196.90

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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.