Home / 3,327.27-4,991.96-987.29

Finding the Fourth Proportional to 3,327.27, 4,991.96 and 987.29

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Solution

The fourth proportional to 3,327.27, 4,991.96 and 987.29 is: 1,481.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.27 : 4,991.96 = 987.29 : x
  2. Step 2: Convert to fraction form
    3,327.27/4,991.96 = 987.29/x
  3. Step 3: Cross multiply
    3,327.27x = 4,991.96 × 987.29
  4. Step 4: Simplify right side
    3,327.27x = 4,928,482.29
  5. Step 5: Solve for x
    x = 4,928,482.29/3,327.27
  6. Step 6: Final answer
    x = 1,481.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.