Home / 3,895.36-5,375.56-2,126.96

Finding the Fourth Proportional to 3,895.36, 5,375.56 and 2,126.96

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Solution

The fourth proportional to 3,895.36, 5,375.56 and 2,126.96 is: 2,935.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.36 : 5,375.56 = 2,126.96 : x
  2. Step 2: Convert to fraction form
    3,895.36/5,375.56 = 2,126.96/x
  3. Step 3: Cross multiply
    3,895.36x = 5,375.56 × 2,126.96
  4. Step 4: Simplify right side
    3,895.36x = 11,433,601.10
  5. Step 5: Solve for x
    x = 11,433,601.10/3,895.36
  6. Step 6: Final answer
    x = 2,935.18

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1.5x scale

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.