Home / 3,895.53-5,375.85-2,127.15

Finding the Fourth Proportional to 3,895.53, 5,375.85 and 2,127.15

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Solution

The fourth proportional to 3,895.53, 5,375.85 and 2,127.15 is: 2,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.53 : 5,375.85 = 2,127.15 : x
  2. Step 2: Convert to fraction form
    3,895.53/5,375.85 = 2,127.15/x
  3. Step 3: Cross multiply
    3,895.53x = 5,375.85 × 2,127.15
  4. Step 4: Simplify right side
    3,895.53x = 11,435,212.45
  5. Step 5: Solve for x
    x = 11,435,212.45/3,895.53
  6. Step 6: Final answer
    x = 2,935.47

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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.