Home / 2,168.14-3,251.87-607.98

Finding the Fourth Proportional to 2,168.14, 3,251.87 and 607.98

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Solution

The fourth proportional to 2,168.14, 3,251.87 and 607.98 is: 911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.14 : 3,251.87 = 607.98 : x
  2. Step 2: Convert to fraction form
    2,168.14/3,251.87 = 607.98/x
  3. Step 3: Cross multiply
    2,168.14x = 3,251.87 × 607.98
  4. Step 4: Simplify right side
    2,168.14x = 1,977,071.92
  5. Step 5: Solve for x
    x = 1,977,071.92/2,168.14
  6. Step 6: Final answer
    x = 911.87

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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.