Home / 3,979.24-5,491.50-2,722.93

Finding the Fourth Proportional to 3,979.24, 5,491.50 and 2,722.93

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Solution

The fourth proportional to 3,979.24, 5,491.50 and 2,722.93 is: 3,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979.24 : 5,491.50 = 2,722.93 : x
  2. Step 2: Convert to fraction form
    3,979.24/5,491.50 = 2,722.93/x
  3. Step 3: Cross multiply
    3,979.24x = 5,491.50 × 2,722.93
  4. Step 4: Simplify right side
    3,979.24x = 14,952,970.10
  5. Step 5: Solve for x
    x = 14,952,970.10/3,979.24
  6. Step 6: Final answer
    x = 3,757.75

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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.