Home / 3,155.11-4,355.79-1,896.47

Finding the Fourth Proportional to 3,155.11, 4,355.79 and 1,896.47

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Solution

The fourth proportional to 3,155.11, 4,355.79 and 1,896.47 is: 2,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.11 : 4,355.79 = 1,896.47 : x
  2. Step 2: Convert to fraction form
    3,155.11/4,355.79 = 1,896.47/x
  3. Step 3: Cross multiply
    3,155.11x = 4,355.79 × 1,896.47
  4. Step 4: Simplify right side
    3,155.11x = 8,260,625.06
  5. Step 5: Solve for x
    x = 8,260,625.06/3,155.11
  6. Step 6: Final answer
    x = 2,618.18

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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.