Home / 3,867.48-5,339.30-2,674.21

Finding the Fourth Proportional to 3,867.48, 5,339.30 and 2,674.21

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Solution

The fourth proportional to 3,867.48, 5,339.30 and 2,674.21 is: 3,691.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.48 : 5,339.30 = 2,674.21 : x
  2. Step 2: Convert to fraction form
    3,867.48/5,339.30 = 2,674.21/x
  3. Step 3: Cross multiply
    3,867.48x = 5,339.30 × 2,674.21
  4. Step 4: Simplify right side
    3,867.48x = 14,278,416.14
  5. Step 5: Solve for x
    x = 14,278,416.14/3,867.48
  6. Step 6: Final answer
    x = 3,691.92

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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.