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Finding the Fourth Proportional to 2,099.59, 3,149.52 and 694.11

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Solution

The fourth proportional to 2,099.59, 3,149.52 and 694.11 is: 1,041.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.59 : 3,149.52 = 694.11 : x
  2. Step 2: Convert to fraction form
    2,099.59/3,149.52 = 694.11/x
  3. Step 3: Cross multiply
    2,099.59x = 3,149.52 × 694.11
  4. Step 4: Simplify right side
    2,099.59x = 2,186,094.11
  5. Step 5: Solve for x
    x = 2,186,094.11/2,099.59
  6. Step 6: Final answer
    x = 1,041.20

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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.