Home / 2,718.68-4,078.30-1,487.88

Finding the Fourth Proportional to 2,718.68, 4,078.30 and 1,487.88

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Solution

The fourth proportional to 2,718.68, 4,078.30 and 1,487.88 is: 2,231.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.68 : 4,078.30 = 1,487.88 : x
  2. Step 2: Convert to fraction form
    2,718.68/4,078.30 = 1,487.88/x
  3. Step 3: Cross multiply
    2,718.68x = 4,078.30 × 1,487.88
  4. Step 4: Simplify right side
    2,718.68x = 6,068,021.00
  5. Step 5: Solve for x
    x = 6,068,021.00/2,718.68
  6. Step 6: Final answer
    x = 2,231.97

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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.