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Finding the Fourth Proportional to 1,973.97, 2,723.22 and 1,228.23

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Solution

The fourth proportional to 1,973.97, 2,723.22 and 1,228.23 is: 1,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.97 : 2,723.22 = 1,228.23 : x
  2. Step 2: Convert to fraction form
    1,973.97/2,723.22 = 1,228.23/x
  3. Step 3: Cross multiply
    1,973.97x = 2,723.22 × 1,228.23
  4. Step 4: Simplify right side
    1,973.97x = 3,344,740.50
  5. Step 5: Solve for x
    x = 3,344,740.50/1,973.97
  6. Step 6: Final answer
    x = 1,694.42

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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.