Home / 3,986.39-5,501.07-2,217.96

Finding the Fourth Proportional to 3,986.39, 5,501.07 and 2,217.96

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Solution

The fourth proportional to 3,986.39, 5,501.07 and 2,217.96 is: 3,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.39 : 5,501.07 = 2,217.96 : x
  2. Step 2: Convert to fraction form
    3,986.39/5,501.07 = 2,217.96/x
  3. Step 3: Cross multiply
    3,986.39x = 5,501.07 × 2,217.96
  4. Step 4: Simplify right side
    3,986.39x = 12,201,153.22
  5. Step 5: Solve for x
    x = 12,201,153.22/3,986.39
  6. Step 6: Final answer
    x = 3,060.70

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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.