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Finding the Fourth Proportional to 3,006.09, 4,509.42 and 814.83

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Solution

The fourth proportional to 3,006.09, 4,509.42 and 814.83 is: 1,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.09 : 4,509.42 = 814.83 : x
  2. Step 2: Convert to fraction form
    3,006.09/4,509.42 = 814.83/x
  3. Step 3: Cross multiply
    3,006.09x = 4,509.42 × 814.83
  4. Step 4: Simplify right side
    3,006.09x = 3,674,410.70
  5. Step 5: Solve for x
    x = 3,674,410.70/3,006.09
  6. Step 6: Final answer
    x = 1,222.32

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1.5x scale

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.