Home / 3,815.01-5,716.64-1,868.55

Finding the Fourth Proportional to 3,815.01, 5,716.64 and 1,868.55

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Solution

The fourth proportional to 3,815.01, 5,716.64 and 1,868.55 is: 2,799.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.01 : 5,716.64 = 1,868.55 : x
  2. Step 2: Convert to fraction form
    3,815.01/5,716.64 = 1,868.55/x
  3. Step 3: Cross multiply
    3,815.01x = 5,716.64 × 1,868.55
  4. Step 4: Simplify right side
    3,815.01x = 10,681,818.33
  5. Step 5: Solve for x
    x = 10,681,818.33/3,815.01
  6. Step 6: Final answer
    x = 2,799.95

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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.