Home / 3,006.35-4,509.68-927.78

Finding the Fourth Proportional to 3,006.35, 4,509.68 and 927.78

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Solution

The fourth proportional to 3,006.35, 4,509.68 and 927.78 is: 1,391.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,006.35 : 4,509.68 = 927.78 : x
  2. Step 2: Convert to fraction form
    3,006.35/4,509.68 = 927.78/x
  3. Step 3: Cross multiply
    3,006.35x = 4,509.68 × 927.78
  4. Step 4: Simplify right side
    3,006.35x = 4,183,990.91
  5. Step 5: Solve for x
    x = 4,183,990.91/3,006.35
  6. Step 6: Final answer
    x = 1,391.72

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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.