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Finding the Fourth Proportional to 3,385, 4,673.22 and 2,555.56

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Solution

The fourth proportional to 3,385, 4,673.22 and 2,555.56 is: 3,528.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385 : 4,673.22 = 2,555.56 : x
  2. Step 2: Convert to fraction form
    3,385/4,673.22 = 2,555.56/x
  3. Step 3: Cross multiply
    3,385x = 4,673.22 × 2,555.56
  4. Step 4: Simplify right side
    3,385x = 11,942,694.10
  5. Step 5: Solve for x
    x = 11,942,694.10/3,385
  6. Step 6: Final answer
    x = 3,528.12

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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.