Home / 3,983.06-5,496.90-2,215.20

Finding the Fourth Proportional to 3,983.06, 5,496.90 and 2,215.20

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Solution

The fourth proportional to 3,983.06, 5,496.90 and 2,215.20 is: 3,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.06 : 5,496.90 = 2,215.20 : x
  2. Step 2: Convert to fraction form
    3,983.06/5,496.90 = 2,215.20/x
  3. Step 3: Cross multiply
    3,983.06x = 5,496.90 × 2,215.20
  4. Step 4: Simplify right side
    3,983.06x = 12,176,732.88
  5. Step 5: Solve for x
    x = 12,176,732.88/3,983.06
  6. Step 6: Final answer
    x = 3,057.13

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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.