Home / 2,012.78-3,014.28-1,394.75

Finding the Fourth Proportional to 2,012.78, 3,014.28 and 1,394.75

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Solution

The fourth proportional to 2,012.78, 3,014.28 and 1,394.75 is: 2,088.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.78 : 3,014.28 = 1,394.75 : x
  2. Step 2: Convert to fraction form
    2,012.78/3,014.28 = 1,394.75/x
  3. Step 3: Cross multiply
    2,012.78x = 3,014.28 × 1,394.75
  4. Step 4: Simplify right side
    2,012.78x = 4,204,167.03
  5. Step 5: Solve for x
    x = 4,204,167.03/2,012.78
  6. Step 6: Final answer
    x = 2,088.74

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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.