Home / 3,895.74-5,843.64-1,431.12

Finding the Fourth Proportional to 3,895.74, 5,843.64 and 1,431.12

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Solution

The fourth proportional to 3,895.74, 5,843.64 and 1,431.12 is: 2,146.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.74 : 5,843.64 = 1,431.12 : x
  2. Step 2: Convert to fraction form
    3,895.74/5,843.64 = 1,431.12/x
  3. Step 3: Cross multiply
    3,895.74x = 5,843.64 × 1,431.12
  4. Step 4: Simplify right side
    3,895.74x = 8,362,950.08
  5. Step 5: Solve for x
    x = 8,362,950.08/3,895.74
  6. Step 6: Final answer
    x = 2,146.69

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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.