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Finding the Fourth Proportional to 2,008.12, 3,018.12 and 1,663.66

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Solution

The fourth proportional to 2,008.12, 3,018.12 and 1,663.66 is: 2,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.12 : 3,018.12 = 1,663.66 : x
  2. Step 2: Convert to fraction form
    2,008.12/3,018.12 = 1,663.66/x
  3. Step 3: Cross multiply
    2,008.12x = 3,018.12 × 1,663.66
  4. Step 4: Simplify right side
    2,008.12x = 5,021,125.52
  5. Step 5: Solve for x
    x = 5,021,125.52/2,008.12
  6. Step 6: Final answer
    x = 2,500.41

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1.5x scale

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.