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Finding the Fourth Proportional to 2,012.66, 3,018.27 and 1,088.90

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Solution

The fourth proportional to 2,012.66, 3,018.27 and 1,088.90 is: 1,632.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,012.66 : 3,018.27 = 1,088.90 : x
  2. Step 2: Convert to fraction form
    2,012.66/3,018.27 = 1,088.90/x
  3. Step 3: Cross multiply
    2,012.66x = 3,018.27 × 1,088.90
  4. Step 4: Simplify right side
    2,012.66x = 3,286,594.20
  5. Step 5: Solve for x
    x = 3,286,594.20/2,012.66
  6. Step 6: Final answer
    x = 1,632.96

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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.