Home / 2,730.85-4,098.30-1,805.02

Finding the Fourth Proportional to 2,730.85, 4,098.30 and 1,805.02

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Solution

The fourth proportional to 2,730.85, 4,098.30 and 1,805.02 is: 2,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.85 : 4,098.30 = 1,805.02 : x
  2. Step 2: Convert to fraction form
    2,730.85/4,098.30 = 1,805.02/x
  3. Step 3: Cross multiply
    2,730.85x = 4,098.30 × 1,805.02
  4. Step 4: Simplify right side
    2,730.85x = 7,397,513.47
  5. Step 5: Solve for x
    x = 7,397,513.47/2,730.85
  6. Step 6: Final answer
    x = 2,708.87

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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.