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Finding the Fourth Proportional to 2,992.05, 4,488.30 and 800.73

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Solution

The fourth proportional to 2,992.05, 4,488.30 and 800.73 is: 1,201.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.05 : 4,488.30 = 800.73 : x
  2. Step 2: Convert to fraction form
    2,992.05/4,488.30 = 800.73/x
  3. Step 3: Cross multiply
    2,992.05x = 4,488.30 × 800.73
  4. Step 4: Simplify right side
    2,992.05x = 3,593,916.46
  5. Step 5: Solve for x
    x = 3,593,916.46/2,992.05
  6. Step 6: Final answer
    x = 1,201.16

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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.