Home / 3,983.48-5,497.35-2,215.21

Finding the Fourth Proportional to 3,983.48, 5,497.35 and 2,215.21

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Solution

The fourth proportional to 3,983.48, 5,497.35 and 2,215.21 is: 3,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.48 : 5,497.35 = 2,215.21 : x
  2. Step 2: Convert to fraction form
    3,983.48/5,497.35 = 2,215.21/x
  3. Step 3: Cross multiply
    3,983.48x = 5,497.35 × 2,215.21
  4. Step 4: Simplify right side
    3,983.48x = 12,177,746.13
  5. Step 5: Solve for x
    x = 12,177,746.13/3,983.48
  6. Step 6: Final answer
    x = 3,057.07

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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.