Home / 3,805.32-5,251.52-2,126.84

Finding the Fourth Proportional to 3,805.32, 5,251.52 and 2,126.84

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Solution

The fourth proportional to 3,805.32, 5,251.52 and 2,126.84 is: 2,935.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.32 : 5,251.52 = 2,126.84 : x
  2. Step 2: Convert to fraction form
    3,805.32/5,251.52 = 2,126.84/x
  3. Step 3: Cross multiply
    3,805.32x = 5,251.52 × 2,126.84
  4. Step 4: Simplify right side
    3,805.32x = 11,169,142.80
  5. Step 5: Solve for x
    x = 11,169,142.80/3,805.32
  6. Step 6: Final answer
    x = 2,935.14

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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.