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Finding the Fourth Proportional to 3,208.66, 4,427.53 and 1,949.99

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Solution

The fourth proportional to 3,208.66, 4,427.53 and 1,949.99 is: 2,690.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.66 : 4,427.53 = 1,949.99 : x
  2. Step 2: Convert to fraction form
    3,208.66/4,427.53 = 1,949.99/x
  3. Step 3: Cross multiply
    3,208.66x = 4,427.53 × 1,949.99
  4. Step 4: Simplify right side
    3,208.66x = 8,633,612.21
  5. Step 5: Solve for x
    x = 8,633,612.21/3,208.66
  6. Step 6: Final answer
    x = 2,690.72

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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.