Home / 1,694.49-2,338.35-938.23

Finding the Fourth Proportional to 1,694.49, 2,338.35 and 938.23

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Solution

The fourth proportional to 1,694.49, 2,338.35 and 938.23 is: 1,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.49 : 2,338.35 = 938.23 : x
  2. Step 2: Convert to fraction form
    1,694.49/2,338.35 = 938.23/x
  3. Step 3: Cross multiply
    1,694.49x = 2,338.35 × 938.23
  4. Step 4: Simplify right side
    1,694.49x = 2,193,910.12
  5. Step 5: Solve for x
    x = 2,193,910.12/1,694.49
  6. Step 6: Final answer
    x = 1,294.73

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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.