Home / 2,863.96-4,295.94-1,218.76

Finding the Fourth Proportional to 2,863.96, 4,295.94 and 1,218.76

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Solution

The fourth proportional to 2,863.96, 4,295.94 and 1,218.76 is: 1,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.96 : 4,295.94 = 1,218.76 : x
  2. Step 2: Convert to fraction form
    2,863.96/4,295.94 = 1,218.76/x
  3. Step 3: Cross multiply
    2,863.96x = 4,295.94 × 1,218.76
  4. Step 4: Simplify right side
    2,863.96x = 5,235,719.83
  5. Step 5: Solve for x
    x = 5,235,719.83/2,863.96
  6. Step 6: Final answer
    x = 1,828.14

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Double scale
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Similar ratio
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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.