Home / 2,817.25-4,226.87-1,257.11

Finding the Fourth Proportional to 2,817.25, 4,226.87 and 1,257.11

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Solution

The fourth proportional to 2,817.25, 4,226.87 and 1,257.11 is: 1,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.25 : 4,226.87 = 1,257.11 : x
  2. Step 2: Convert to fraction form
    2,817.25/4,226.87 = 1,257.11/x
  3. Step 3: Cross multiply
    2,817.25x = 4,226.87 × 1,257.11
  4. Step 4: Simplify right side
    2,817.25x = 5,313,638.40
  5. Step 5: Solve for x
    x = 5,313,638.40/2,817.25
  6. Step 6: Final answer
    x = 1,886.11

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1.5x scale

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.