Home / 3,270.87-4,508.78-2,009.57

Finding the Fourth Proportional to 3,270.87, 4,508.78 and 2,009.57

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Solution

The fourth proportional to 3,270.87, 4,508.78 and 2,009.57 is: 2,770.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.87 : 4,508.78 = 2,009.57 : x
  2. Step 2: Convert to fraction form
    3,270.87/4,508.78 = 2,009.57/x
  3. Step 3: Cross multiply
    3,270.87x = 4,508.78 × 2,009.57
  4. Step 4: Simplify right side
    3,270.87x = 9,060,676.43
  5. Step 5: Solve for x
    x = 9,060,676.43/3,270.87
  6. Step 6: Final answer
    x = 2,770.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.