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Finding the Fourth Proportional to 4,002.99, 6,002.49 and 1,228.99

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Solution

The fourth proportional to 4,002.99, 6,002.49 and 1,228.99 is: 1,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,002.99 : 6,002.49 = 1,228.99 : x
  2. Step 2: Convert to fraction form
    4,002.99/6,002.49 = 1,228.99/x
  3. Step 3: Cross multiply
    4,002.99x = 6,002.49 × 1,228.99
  4. Step 4: Simplify right side
    4,002.99x = 7,377,000.19
  5. Step 5: Solve for x
    x = 7,377,000.19/4,002.99
  6. Step 6: Final answer
    x = 1,842.87

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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.