Home / 3,288.48-4,932-1,338.72

Finding the Fourth Proportional to 3,288.48, 4,932 and 1,338.72

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Solution

The fourth proportional to 3,288.48, 4,932 and 1,338.72 is: 2,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.48 : 4,932 = 1,338.72 : x
  2. Step 2: Convert to fraction form
    3,288.48/4,932 = 1,338.72/x
  3. Step 3: Cross multiply
    3,288.48x = 4,932 × 1,338.72
  4. Step 4: Simplify right side
    3,288.48x = 6,602,567.04
  5. Step 5: Solve for x
    x = 6,602,567.04/3,288.48
  6. Step 6: Final answer
    x = 2,007.79

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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.