Home / 4,122.18-6,187.68-1,658.70

Finding the Fourth Proportional to 4,122.18, 6,187.68 and 1,658.70

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Solution

The fourth proportional to 4,122.18, 6,187.68 and 1,658.70 is: 2,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.18 : 6,187.68 = 1,658.70 : x
  2. Step 2: Convert to fraction form
    4,122.18/6,187.68 = 1,658.70/x
  3. Step 3: Cross multiply
    4,122.18x = 6,187.68 × 1,658.70
  4. Step 4: Simplify right side
    4,122.18x = 10,263,504.82
  5. Step 5: Solve for x
    x = 10,263,504.82/4,122.18
  6. Step 6: Final answer
    x = 2,489.82

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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.