Home / 3,860.95-5,791.71-1,395.76

Finding the Fourth Proportional to 3,860.95, 5,791.71 and 1,395.76

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Solution

The fourth proportional to 3,860.95, 5,791.71 and 1,395.76 is: 2,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,860.95 : 5,791.71 = 1,395.76 : x
  2. Step 2: Convert to fraction form
    3,860.95/5,791.71 = 1,395.76/x
  3. Step 3: Cross multiply
    3,860.95x = 5,791.71 × 1,395.76
  4. Step 4: Simplify right side
    3,860.95x = 8,083,837.15
  5. Step 5: Solve for x
    x = 8,083,837.15/3,860.95
  6. Step 6: Final answer
    x = 2,093.74

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1.5x scale

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.