Home / 2,659.11-3,989.28-1,015.62

Finding the Fourth Proportional to 2,659.11, 3,989.28 and 1,015.62

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Solution

The fourth proportional to 2,659.11, 3,989.28 and 1,015.62 is: 1,523.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.11 : 3,989.28 = 1,015.62 : x
  2. Step 2: Convert to fraction form
    2,659.11/3,989.28 = 1,015.62/x
  3. Step 3: Cross multiply
    2,659.11x = 3,989.28 × 1,015.62
  4. Step 4: Simplify right side
    2,659.11x = 4,051,592.55
  5. Step 5: Solve for x
    x = 4,051,592.55/2,659.11
  6. Step 6: Final answer
    x = 1,523.66

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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.