Home / 3,984.19-5,498.18-2,215.76

Finding the Fourth Proportional to 3,984.19, 5,498.18 and 2,215.76

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Solution

The fourth proportional to 3,984.19, 5,498.18 and 2,215.76 is: 3,057.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.19 : 5,498.18 = 2,215.76 : x
  2. Step 2: Convert to fraction form
    3,984.19/5,498.18 = 2,215.76/x
  3. Step 3: Cross multiply
    3,984.19x = 5,498.18 × 2,215.76
  4. Step 4: Simplify right side
    3,984.19x = 12,182,617.06
  5. Step 5: Solve for x
    x = 12,182,617.06/3,984.19
  6. Step 6: Final answer
    x = 3,057.74

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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.