Home / 2,257.83-3,115.82-1,263.12

Finding the Fourth Proportional to 2,257.83, 3,115.82 and 1,263.12

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Solution

The fourth proportional to 2,257.83, 3,115.82 and 1,263.12 is: 1,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.83 : 3,115.82 = 1,263.12 : x
  2. Step 2: Convert to fraction form
    2,257.83/3,115.82 = 1,263.12/x
  3. Step 3: Cross multiply
    2,257.83x = 3,115.82 × 1,263.12
  4. Step 4: Simplify right side
    2,257.83x = 3,935,648.24
  5. Step 5: Solve for x
    x = 3,935,648.24/2,257.83
  6. Step 6: Final answer
    x = 1,743.11

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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.