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Finding the Fourth Proportional to 5,329.78, 7,998.27 and 1,867.06

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Solution

The fourth proportional to 5,329.78, 7,998.27 and 1,867.06 is: 2,801.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.78 : 7,998.27 = 1,867.06 : x
  2. Step 2: Convert to fraction form
    5,329.78/7,998.27 = 1,867.06/x
  3. Step 3: Cross multiply
    5,329.78x = 7,998.27 × 1,867.06
  4. Step 4: Simplify right side
    5,329.78x = 14,933,249.99
  5. Step 5: Solve for x
    x = 14,933,249.99/5,329.78
  6. Step 6: Final answer
    x = 2,801.85

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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.