Home / 3,378.48-5,068.20-1,326

Finding the Fourth Proportional to 3,378.48, 5,068.20 and 1,326

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Solution

The fourth proportional to 3,378.48, 5,068.20 and 1,326 is: 1,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.48 : 5,068.20 = 1,326 : x
  2. Step 2: Convert to fraction form
    3,378.48/5,068.20 = 1,326/x
  3. Step 3: Cross multiply
    3,378.48x = 5,068.20 × 1,326
  4. Step 4: Simplify right side
    3,378.48x = 6,720,433.20
  5. Step 5: Solve for x
    x = 6,720,433.20/3,378.48
  6. Step 6: Final answer
    x = 1,989.19

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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.