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Finding the Fourth Proportional to 2,808.84, 4,193.44 and 2,147.22

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Solution

The fourth proportional to 2,808.84, 4,193.44 and 2,147.22 is: 3,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.84 : 4,193.44 = 2,147.22 : x
  2. Step 2: Convert to fraction form
    2,808.84/4,193.44 = 2,147.22/x
  3. Step 3: Cross multiply
    2,808.84x = 4,193.44 × 2,147.22
  4. Step 4: Simplify right side
    2,808.84x = 9,004,238.24
  5. Step 5: Solve for x
    x = 9,004,238.24/2,808.84
  6. Step 6: Final answer
    x = 3,205.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.