Home / 2,687.33-4,027.73-1,126.51

Finding the Fourth Proportional to 2,687.33, 4,027.73 and 1,126.51

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Solution

The fourth proportional to 2,687.33, 4,027.73 and 1,126.51 is: 1,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.33 : 4,027.73 = 1,126.51 : x
  2. Step 2: Convert to fraction form
    2,687.33/4,027.73 = 1,126.51/x
  3. Step 3: Cross multiply
    2,687.33x = 4,027.73 × 1,126.51
  4. Step 4: Simplify right side
    2,687.33x = 4,537,262.42
  5. Step 5: Solve for x
    x = 4,537,262.42/2,687.33
  6. Step 6: Final answer
    x = 1,688.39

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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.