Home / 2,257.19-3,114.83-1,248.83

Finding the Fourth Proportional to 2,257.19, 3,114.83 and 1,248.83

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Solution

The fourth proportional to 2,257.19, 3,114.83 and 1,248.83 is: 1,723.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.19 : 3,114.83 = 1,248.83 : x
  2. Step 2: Convert to fraction form
    2,257.19/3,114.83 = 1,248.83/x
  3. Step 3: Cross multiply
    2,257.19x = 3,114.83 × 1,248.83
  4. Step 4: Simplify right side
    2,257.19x = 3,889,893.15
  5. Step 5: Solve for x
    x = 3,889,893.15/2,257.19
  6. Step 6: Final answer
    x = 1,723.33

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Half scale
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Double scale
Find fourth proportional to 2,258.19, 3,116.21 and 1,249.83
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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.