Home / 2,863.12-4,293.60-1,218.64

Finding the Fourth Proportional to 2,863.12, 4,293.60 and 1,218.64

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Solution

The fourth proportional to 2,863.12, 4,293.60 and 1,218.64 is: 1,827.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.12 : 4,293.60 = 1,218.64 : x
  2. Step 2: Convert to fraction form
    2,863.12/4,293.60 = 1,218.64/x
  3. Step 3: Cross multiply
    2,863.12x = 4,293.60 × 1,218.64
  4. Step 4: Simplify right side
    2,863.12x = 5,232,352.70
  5. Step 5: Solve for x
    x = 5,232,352.70/2,863.12
  6. Step 6: Final answer
    x = 1,827.50

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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.