Home / 3,314.20-4,966.80-2,140.60

Finding the Fourth Proportional to 3,314.20, 4,966.80 and 2,140.60

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Solution

The fourth proportional to 3,314.20, 4,966.80 and 2,140.60 is: 3,207.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,314.20 : 4,966.80 = 2,140.60 : x
  2. Step 2: Convert to fraction form
    3,314.20/4,966.80 = 2,140.60/x
  3. Step 3: Cross multiply
    3,314.20x = 4,966.80 × 2,140.60
  4. Step 4: Simplify right side
    3,314.20x = 10,631,932.08
  5. Step 5: Solve for x
    x = 10,631,932.08/3,314.20
  6. Step 6: Final answer
    x = 3,207.99

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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.