Home / 3,986.46-5,501.28-2,193.90

Finding the Fourth Proportional to 3,986.46, 5,501.28 and 2,193.90

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Solution

The fourth proportional to 3,986.46, 5,501.28 and 2,193.90 is: 3,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986.46 : 5,501.28 = 2,193.90 : x
  2. Step 2: Convert to fraction form
    3,986.46/5,501.28 = 2,193.90/x
  3. Step 3: Cross multiply
    3,986.46x = 5,501.28 × 2,193.90
  4. Step 4: Simplify right side
    3,986.46x = 12,069,258.19
  5. Step 5: Solve for x
    x = 12,069,258.19/3,986.46
  6. Step 6: Final answer
    x = 3,027.56

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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.