Home / 3,984.16-5,497.88-2,215.84

Finding the Fourth Proportional to 3,984.16, 5,497.88 and 2,215.84

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Solution

The fourth proportional to 3,984.16, 5,497.88 and 2,215.84 is: 3,057.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.16 : 5,497.88 = 2,215.84 : x
  2. Step 2: Convert to fraction form
    3,984.16/5,497.88 = 2,215.84/x
  3. Step 3: Cross multiply
    3,984.16x = 5,497.88 × 2,215.84
  4. Step 4: Simplify right side
    3,984.16x = 12,182,422.42
  5. Step 5: Solve for x
    x = 12,182,422.42/3,984.16
  6. Step 6: Final answer
    x = 3,057.71

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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.