Home / 3,986.31-5,501.34-2,217.96

Finding the Fourth Proportional to 3,986.31, 5,501.34 and 2,217.96

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Solution

The fourth proportional to 3,986.31, 5,501.34 and 2,217.96 is: 3,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.31 : 5,501.34 = 2,217.96 : x
  2. Step 2: Convert to fraction form
    3,986.31/5,501.34 = 2,217.96/x
  3. Step 3: Cross multiply
    3,986.31x = 5,501.34 × 2,217.96
  4. Step 4: Simplify right side
    3,986.31x = 12,201,752.07
  5. Step 5: Solve for x
    x = 12,201,752.07/3,986.31
  6. Step 6: Final answer
    x = 3,060.91

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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.