Home / 3,737.20-5,156.20-2,165

Finding the Fourth Proportional to 3,737.20, 5,156.20 and 2,165

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Solution

The fourth proportional to 3,737.20, 5,156.20 and 2,165 is: 2,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,737.20 : 5,156.20 = 2,165 : x
  2. Step 2: Convert to fraction form
    3,737.20/5,156.20 = 2,165/x
  3. Step 3: Cross multiply
    3,737.20x = 5,156.20 × 2,165
  4. Step 4: Simplify right side
    3,737.20x = 11,163,173
  5. Step 5: Solve for x
    x = 11,163,173/3,737.20
  6. Step 6: Final answer
    x = 2,987.04

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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.