Home / 3,271.68-4,514.88-2,154.24

Finding the Fourth Proportional to 3,271.68, 4,514.88 and 2,154.24

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Solution

The fourth proportional to 3,271.68, 4,514.88 and 2,154.24 is: 2,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,271.68 : 4,514.88 = 2,154.24 : x
  2. Step 2: Convert to fraction form
    3,271.68/4,514.88 = 2,154.24/x
  3. Step 3: Cross multiply
    3,271.68x = 4,514.88 × 2,154.24
  4. Step 4: Simplify right side
    3,271.68x = 9,726,135.09
  5. Step 5: Solve for x
    x = 9,726,135.09/3,271.68
  6. Step 6: Final answer
    x = 2,972.83

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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.