Home / 5,433.78-8,146.89-2,620.92

Finding the Fourth Proportional to 5,433.78, 8,146.89 and 2,620.92

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Solution

The fourth proportional to 5,433.78, 8,146.89 and 2,620.92 is: 3,929.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,433.78 : 8,146.89 = 2,620.92 : x
  2. Step 2: Convert to fraction form
    5,433.78/8,146.89 = 2,620.92/x
  3. Step 3: Cross multiply
    5,433.78x = 8,146.89 × 2,620.92
  4. Step 4: Simplify right side
    5,433.78x = 21,352,346.94
  5. Step 5: Solve for x
    x = 21,352,346.94/5,433.78
  6. Step 6: Final answer
    x = 3,929.56

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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.