Home / 2,213.64-3,055.92-1,281.96

Finding the Fourth Proportional to 2,213.64, 3,055.92 and 1,281.96

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Solution

The fourth proportional to 2,213.64, 3,055.92 and 1,281.96 is: 1,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.64 : 3,055.92 = 1,281.96 : x
  2. Step 2: Convert to fraction form
    2,213.64/3,055.92 = 1,281.96/x
  3. Step 3: Cross multiply
    2,213.64x = 3,055.92 × 1,281.96
  4. Step 4: Simplify right side
    2,213.64x = 3,917,567.20
  5. Step 5: Solve for x
    x = 3,917,567.20/2,213.64
  6. Step 6: Final answer
    x = 1,769.74

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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.