Home / 3,321.40-4,976.70-2,770.60

Finding the Fourth Proportional to 3,321.40, 4,976.70 and 2,770.60

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Solution

The fourth proportional to 3,321.40, 4,976.70 and 2,770.60 is: 4,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.40 : 4,976.70 = 2,770.60 : x
  2. Step 2: Convert to fraction form
    3,321.40/4,976.70 = 2,770.60/x
  3. Step 3: Cross multiply
    3,321.40x = 4,976.70 × 2,770.60
  4. Step 4: Simplify right side
    3,321.40x = 13,788,445.02
  5. Step 5: Solve for x
    x = 13,788,445.02/3,321.40
  6. Step 6: Final answer
    x = 4,151.40

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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.