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Finding the Fourth Proportional to 3,253.72, 4,879.64 and 1,866.82

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Solution

The fourth proportional to 3,253.72, 4,879.64 and 1,866.82 is: 2,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.72 : 4,879.64 = 1,866.82 : x
  2. Step 2: Convert to fraction form
    3,253.72/4,879.64 = 1,866.82/x
  3. Step 3: Cross multiply
    3,253.72x = 4,879.64 × 1,866.82
  4. Step 4: Simplify right side
    3,253.72x = 9,109,400.21
  5. Step 5: Solve for x
    x = 9,109,400.21/3,253.72
  6. Step 6: Final answer
    x = 2,799.69

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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.