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Finding the Fourth Proportional to 3,321.59, 4,972.73 and 1,930.68

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Solution

The fourth proportional to 3,321.59, 4,972.73 and 1,930.68 is: 2,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.59 : 4,972.73 = 1,930.68 : x
  2. Step 2: Convert to fraction form
    3,321.59/4,972.73 = 1,930.68/x
  3. Step 3: Cross multiply
    3,321.59x = 4,972.73 × 1,930.68
  4. Step 4: Simplify right side
    3,321.59x = 9,600,740.70
  5. Step 5: Solve for x
    x = 9,600,740.70/3,321.59
  6. Step 6: Final answer
    x = 2,890.41

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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.