Home / 2,730.79-4,097.09-1,086.90

Finding the Fourth Proportional to 2,730.79, 4,097.09 and 1,086.90

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Solution

The fourth proportional to 2,730.79, 4,097.09 and 1,086.90 is: 1,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.79 : 4,097.09 = 1,086.90 : x
  2. Step 2: Convert to fraction form
    2,730.79/4,097.09 = 1,086.90/x
  3. Step 3: Cross multiply
    2,730.79x = 4,097.09 × 1,086.90
  4. Step 4: Simplify right side
    2,730.79x = 4,453,127.12
  5. Step 5: Solve for x
    x = 4,453,127.12/2,730.79
  6. Step 6: Final answer
    x = 1,630.71

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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.