Home / 3,327.15-4,989.19-986.31

Finding the Fourth Proportional to 3,327.15, 4,989.19 and 986.31

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Solution

The fourth proportional to 3,327.15, 4,989.19 and 986.31 is: 1,479.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.15 : 4,989.19 = 986.31 : x
  2. Step 2: Convert to fraction form
    3,327.15/4,989.19 = 986.31/x
  3. Step 3: Cross multiply
    3,327.15x = 4,989.19 × 986.31
  4. Step 4: Simplify right side
    3,327.15x = 4,920,887.99
  5. Step 5: Solve for x
    x = 4,920,887.99/3,327.15
  6. Step 6: Final answer
    x = 1,479.01

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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.