Home / 3,895.47-5,375.82-2,127.08

Finding the Fourth Proportional to 3,895.47, 5,375.82 and 2,127.08

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Solution

The fourth proportional to 3,895.47, 5,375.82 and 2,127.08 is: 2,935.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.47 : 5,375.82 = 2,127.08 : x
  2. Step 2: Convert to fraction form
    3,895.47/5,375.82 = 2,127.08/x
  3. Step 3: Cross multiply
    3,895.47x = 5,375.82 × 2,127.08
  4. Step 4: Simplify right side
    3,895.47x = 11,434,799.21
  5. Step 5: Solve for x
    x = 11,434,799.21/3,895.47
  6. Step 6: Final answer
    x = 2,935.41

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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.