Home / 3,126.13-4,689.82-1,394.75

Finding the Fourth Proportional to 3,126.13, 4,689.82 and 1,394.75

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Solution

The fourth proportional to 3,126.13, 4,689.82 and 1,394.75 is: 2,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.13 : 4,689.82 = 1,394.75 : x
  2. Step 2: Convert to fraction form
    3,126.13/4,689.82 = 1,394.75/x
  3. Step 3: Cross multiply
    3,126.13x = 4,689.82 × 1,394.75
  4. Step 4: Simplify right side
    3,126.13x = 6,541,126.45
  5. Step 5: Solve for x
    x = 6,541,126.45/3,126.13
  6. Step 6: Final answer
    x = 2,092.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.