Home / 5,221.79-7,206.12-2,863.88

Finding the Fourth Proportional to 5,221.79, 7,206.12 and 2,863.88

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Solution

The fourth proportional to 5,221.79, 7,206.12 and 2,863.88 is: 3,952.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.79 : 7,206.12 = 2,863.88 : x
  2. Step 2: Convert to fraction form
    5,221.79/7,206.12 = 2,863.88/x
  3. Step 3: Cross multiply
    5,221.79x = 7,206.12 × 2,863.88
  4. Step 4: Simplify right side
    5,221.79x = 20,637,462.95
  5. Step 5: Solve for x
    x = 20,637,462.95/5,221.79
  6. Step 6: Final answer
    x = 3,952.18

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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.