Home / 3,983.60-5,497.44-2,215.34

Finding the Fourth Proportional to 3,983.60, 5,497.44 and 2,215.34

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Solution

The fourth proportional to 3,983.60, 5,497.44 and 2,215.34 is: 3,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.60 : 5,497.44 = 2,215.34 : x
  2. Step 2: Convert to fraction form
    3,983.60/5,497.44 = 2,215.34/x
  3. Step 3: Cross multiply
    3,983.60x = 5,497.44 × 2,215.34
  4. Step 4: Simplify right side
    3,983.60x = 12,178,698.73
  5. Step 5: Solve for x
    x = 12,178,698.73/3,983.60
  6. Step 6: Final answer
    x = 3,057.21

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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.