Home / 3,835.28-5,757.19-1,985.90

Finding the Fourth Proportional to 3,835.28, 5,757.19 and 1,985.90

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Solution

The fourth proportional to 3,835.28, 5,757.19 and 1,985.90 is: 2,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.28 : 5,757.19 = 1,985.90 : x
  2. Step 2: Convert to fraction form
    3,835.28/5,757.19 = 1,985.90/x
  3. Step 3: Cross multiply
    3,835.28x = 5,757.19 × 1,985.90
  4. Step 4: Simplify right side
    3,835.28x = 11,433,166.15
  5. Step 5: Solve for x
    x = 11,433,166.15/3,835.28
  6. Step 6: Final answer
    x = 2,981.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.