Home / 4,920.52-7,378.80-2,321.68

Finding the Fourth Proportional to 4,920.52, 7,378.80 and 2,321.68

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Solution

The fourth proportional to 4,920.52, 7,378.80 and 2,321.68 is: 3,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.52 : 7,378.80 = 2,321.68 : x
  2. Step 2: Convert to fraction form
    4,920.52/7,378.80 = 2,321.68/x
  3. Step 3: Cross multiply
    4,920.52x = 7,378.80 × 2,321.68
  4. Step 4: Simplify right side
    4,920.52x = 17,131,212.38
  5. Step 5: Solve for x
    x = 17,131,212.38/4,920.52
  6. Step 6: Final answer
    x = 3,481.59

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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.