Home / 3,328.48-4,986.32-1,863.20

Finding the Fourth Proportional to 3,328.48, 4,986.32 and 1,863.20

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Solution

The fourth proportional to 3,328.48, 4,986.32 and 1,863.20 is: 2,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.48 : 4,986.32 = 1,863.20 : x
  2. Step 2: Convert to fraction form
    3,328.48/4,986.32 = 1,863.20/x
  3. Step 3: Cross multiply
    3,328.48x = 4,986.32 × 1,863.20
  4. Step 4: Simplify right side
    3,328.48x = 9,290,511.42
  5. Step 5: Solve for x
    x = 9,290,511.42/3,328.48
  6. Step 6: Final answer
    x = 2,791.22

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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.