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Finding the Fourth Proportional to 1,394.08, 2,104.22 and 1,394.08

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Solution

The fourth proportional to 1,394.08, 2,104.22 and 1,394.08 is: 2,104.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.08 : 2,104.22 = 1,394.08 : x
  2. Step 2: Convert to fraction form
    1,394.08/2,104.22 = 1,394.08/x
  3. Step 3: Cross multiply
    1,394.08x = 2,104.22 × 1,394.08
  4. Step 4: Simplify right side
    1,394.08x = 2,933,451.02
  5. Step 5: Solve for x
    x = 2,933,451.02/1,394.08
  6. Step 6: Final answer
    x = 2,104.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.