Home / 3,984.32-5,498.37-2,215.92

Finding the Fourth Proportional to 3,984.32, 5,498.37 and 2,215.92

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Solution

The fourth proportional to 3,984.32, 5,498.37 and 2,215.92 is: 3,057.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.32 : 5,498.37 = 2,215.92 : x
  2. Step 2: Convert to fraction form
    3,984.32/5,498.37 = 2,215.92/x
  3. Step 3: Cross multiply
    3,984.32x = 5,498.37 × 2,215.92
  4. Step 4: Simplify right side
    3,984.32x = 12,183,948.05
  5. Step 5: Solve for x
    x = 12,183,948.05/3,984.32
  6. Step 6: Final answer
    x = 3,057.98

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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.