Home / 2,809.20-4,216.45-2,066.55

Finding the Fourth Proportional to 2,809.20, 4,216.45 and 2,066.55

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Solution

The fourth proportional to 2,809.20, 4,216.45 and 2,066.55 is: 3,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.20 : 4,216.45 = 2,066.55 : x
  2. Step 2: Convert to fraction form
    2,809.20/4,216.45 = 2,066.55/x
  3. Step 3: Cross multiply
    2,809.20x = 4,216.45 × 2,066.55
  4. Step 4: Simplify right side
    2,809.20x = 8,713,473.33
  5. Step 5: Solve for x
    x = 8,713,473.33/2,809.20
  6. Step 6: Final answer
    x = 3,101.76

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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.