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Finding the Fourth Proportional to 4,409.91, 6,619.20 and 3,000

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Solution

The fourth proportional to 4,409.91, 6,619.20 and 3,000 is: 4,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.91 : 6,619.20 = 3,000 : x
  2. Step 2: Convert to fraction form
    4,409.91/6,619.20 = 3,000/x
  3. Step 3: Cross multiply
    4,409.91x = 6,619.20 × 3,000
  4. Step 4: Simplify right side
    4,409.91x = 19,857,600
  5. Step 5: Solve for x
    x = 19,857,600/4,409.91
  6. Step 6: Final answer
    x = 4,502.95

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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.