Home / 3,686.31-5,086.98-2,193.88

Finding the Fourth Proportional to 3,686.31, 5,086.98 and 2,193.88

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Solution

The fourth proportional to 3,686.31, 5,086.98 and 2,193.88 is: 3,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.31 : 5,086.98 = 2,193.88 : x
  2. Step 2: Convert to fraction form
    3,686.31/5,086.98 = 2,193.88/x
  3. Step 3: Cross multiply
    3,686.31x = 5,086.98 × 2,193.88
  4. Step 4: Simplify right side
    3,686.31x = 11,160,223.68
  5. Step 5: Solve for x
    x = 11,160,223.68/3,686.31
  6. Step 6: Final answer
    x = 3,027.48

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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.