Home / 3,738.76-5,159.86-2,805.64

Finding the Fourth Proportional to 3,738.76, 5,159.86 and 2,805.64

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Solution

The fourth proportional to 3,738.76, 5,159.86 and 2,805.64 is: 3,872.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.76 : 5,159.86 = 2,805.64 : x
  2. Step 2: Convert to fraction form
    3,738.76/5,159.86 = 2,805.64/x
  3. Step 3: Cross multiply
    3,738.76x = 5,159.86 × 2,805.64
  4. Step 4: Simplify right side
    3,738.76x = 14,476,709.61
  5. Step 5: Solve for x
    x = 14,476,709.61/3,738.76
  6. Step 6: Final answer
    x = 3,872.06

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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.