Home / 2,270.57-3,133.58-1,276.09

Finding the Fourth Proportional to 2,270.57, 3,133.58 and 1,276.09

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Solution

The fourth proportional to 2,270.57, 3,133.58 and 1,276.09 is: 1,761.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.57 : 3,133.58 = 1,276.09 : x
  2. Step 2: Convert to fraction form
    2,270.57/3,133.58 = 1,276.09/x
  3. Step 3: Cross multiply
    2,270.57x = 3,133.58 × 1,276.09
  4. Step 4: Simplify right side
    2,270.57x = 3,998,714.43
  5. Step 5: Solve for x
    x = 3,998,714.43/2,270.57
  6. Step 6: Final answer
    x = 1,761.11

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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.