Home / 4,809.11-6,636.60-2,819.70

Finding the Fourth Proportional to 4,809.11, 6,636.60 and 2,819.70

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Solution

The fourth proportional to 4,809.11, 6,636.60 and 2,819.70 is: 3,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809.11 : 6,636.60 = 2,819.70 : x
  2. Step 2: Convert to fraction form
    4,809.11/6,636.60 = 2,819.70/x
  3. Step 3: Cross multiply
    4,809.11x = 6,636.60 × 2,819.70
  4. Step 4: Simplify right side
    4,809.11x = 18,713,221.02
  5. Step 5: Solve for x
    x = 18,713,221.02/4,809.11
  6. Step 6: Final answer
    x = 3,891.21

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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.