Home / 3,288.72-4,537.68-1,891.44

Finding the Fourth Proportional to 3,288.72, 4,537.68 and 1,891.44

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Solution

The fourth proportional to 3,288.72, 4,537.68 and 1,891.44 is: 2,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.72 : 4,537.68 = 1,891.44 : x
  2. Step 2: Convert to fraction form
    3,288.72/4,537.68 = 1,891.44/x
  3. Step 3: Cross multiply
    3,288.72x = 4,537.68 × 1,891.44
  4. Step 4: Simplify right side
    3,288.72x = 8,582,749.46
  5. Step 5: Solve for x
    x = 8,582,749.46/3,288.72
  6. Step 6: Final answer
    x = 2,609.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.