Home / 2,018.05-3,027.42-631.11

Finding the Fourth Proportional to 2,018.05, 3,027.42 and 631.11

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Solution

The fourth proportional to 2,018.05, 3,027.42 and 631.11 is: 946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.05 : 3,027.42 = 631.11 : x
  2. Step 2: Convert to fraction form
    2,018.05/3,027.42 = 631.11/x
  3. Step 3: Cross multiply
    2,018.05x = 3,027.42 × 631.11
  4. Step 4: Simplify right side
    2,018.05x = 1,910,644.02
  5. Step 5: Solve for x
    x = 1,910,644.02/2,018.05
  6. Step 6: Final answer
    x = 946.78

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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.