Home / 3,835.90-5,753.85-1,643.21

Finding the Fourth Proportional to 3,835.90, 5,753.85 and 1,643.21

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Solution

The fourth proportional to 3,835.90, 5,753.85 and 1,643.21 is: 2,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,835.90 : 5,753.85 = 1,643.21 : x
  2. Step 2: Convert to fraction form
    3,835.90/5,753.85 = 1,643.21/x
  3. Step 3: Cross multiply
    3,835.90x = 5,753.85 × 1,643.21
  4. Step 4: Simplify right side
    3,835.90x = 9,454,746.87
  5. Step 5: Solve for x
    x = 9,454,746.87/3,835.90
  6. Step 6: Final answer
    x = 2,464.81

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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.