Home / 3,984.18-5,498.19-2,215.95

Finding the Fourth Proportional to 3,984.18, 5,498.19 and 2,215.95

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Solution

The fourth proportional to 3,984.18, 5,498.19 and 2,215.95 is: 3,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.18 : 5,498.19 = 2,215.95 : x
  2. Step 2: Convert to fraction form
    3,984.18/5,498.19 = 2,215.95/x
  3. Step 3: Cross multiply
    3,984.18x = 5,498.19 × 2,215.95
  4. Step 4: Simplify right side
    3,984.18x = 12,183,714.13
  5. Step 5: Solve for x
    x = 12,183,714.13/3,984.18
  6. Step 6: Final answer
    x = 3,058.02

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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.