Home / 3,815.06-5,724.70-1,867.28

Finding the Fourth Proportional to 3,815.06, 5,724.70 and 1,867.28

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Solution

The fourth proportional to 3,815.06, 5,724.70 and 1,867.28 is: 2,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.06 : 5,724.70 = 1,867.28 : x
  2. Step 2: Convert to fraction form
    3,815.06/5,724.70 = 1,867.28/x
  3. Step 3: Cross multiply
    3,815.06x = 5,724.70 × 1,867.28
  4. Step 4: Simplify right side
    3,815.06x = 10,689,617.82
  5. Step 5: Solve for x
    x = 10,689,617.82/3,815.06
  6. Step 6: Final answer
    x = 2,801.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.