Home / 3,579.42-4,939.66-2,162.91

Finding the Fourth Proportional to 3,579.42, 4,939.66 and 2,162.91

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Solution

The fourth proportional to 3,579.42, 4,939.66 and 2,162.91 is: 2,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.42 : 4,939.66 = 2,162.91 : x
  2. Step 2: Convert to fraction form
    3,579.42/4,939.66 = 2,162.91/x
  3. Step 3: Cross multiply
    3,579.42x = 4,939.66 × 2,162.91
  4. Step 4: Simplify right side
    3,579.42x = 10,684,029.20
  5. Step 5: Solve for x
    x = 10,684,029.20/3,579.42
  6. Step 6: Final answer
    x = 2,984.85

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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.