Home / 2,018.11-3,027.30-631.66

Finding the Fourth Proportional to 2,018.11, 3,027.30 and 631.66

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Solution

The fourth proportional to 2,018.11, 3,027.30 and 631.66 is: 947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.11 : 3,027.30 = 631.66 : x
  2. Step 2: Convert to fraction form
    2,018.11/3,027.30 = 631.66/x
  3. Step 3: Cross multiply
    2,018.11x = 3,027.30 × 631.66
  4. Step 4: Simplify right side
    2,018.11x = 1,912,206.02
  5. Step 5: Solve for x
    x = 1,912,206.02/2,018.11
  6. Step 6: Final answer
    x = 947.53

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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.