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Finding the Fourth Proportional to 3,805.98, 5,257.08 and 2,919.84

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Solution

The fourth proportional to 3,805.98, 5,257.08 and 2,919.84 is: 4,033.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.98 : 5,257.08 = 2,919.84 : x
  2. Step 2: Convert to fraction form
    3,805.98/5,257.08 = 2,919.84/x
  3. Step 3: Cross multiply
    3,805.98x = 5,257.08 × 2,919.84
  4. Step 4: Simplify right side
    3,805.98x = 15,349,832.47
  5. Step 5: Solve for x
    x = 15,349,832.47/3,805.98
  6. Step 6: Final answer
    x = 4,033.08

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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.