Home / 3,245.70-4,868.55-2,208.90

Finding the Fourth Proportional to 3,245.70, 4,868.55 and 2,208.90

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Solution

The fourth proportional to 3,245.70, 4,868.55 and 2,208.90 is: 3,313.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.70 : 4,868.55 = 2,208.90 : x
  2. Step 2: Convert to fraction form
    3,245.70/4,868.55 = 2,208.90/x
  3. Step 3: Cross multiply
    3,245.70x = 4,868.55 × 2,208.90
  4. Step 4: Simplify right side
    3,245.70x = 10,754,140.10
  5. Step 5: Solve for x
    x = 10,754,140.10/3,245.70
  6. Step 6: Final answer
    x = 3,313.35

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Similar ratio
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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.