Home / 3,612.82-4,987.84-2,287.66

Finding the Fourth Proportional to 3,612.82, 4,987.84 and 2,287.66

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Solution

The fourth proportional to 3,612.82, 4,987.84 and 2,287.66 is: 3,158.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.82 : 4,987.84 = 2,287.66 : x
  2. Step 2: Convert to fraction form
    3,612.82/4,987.84 = 2,287.66/x
  3. Step 3: Cross multiply
    3,612.82x = 4,987.84 × 2,287.66
  4. Step 4: Simplify right side
    3,612.82x = 11,410,482.05
  5. Step 5: Solve for x
    x = 11,410,482.05/3,612.82
  6. Step 6: Final answer
    x = 3,158.33

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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.