Home / 2,611.53-3,914.46-1,309.86

Finding the Fourth Proportional to 2,611.53, 3,914.46 and 1,309.86

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Solution

The fourth proportional to 2,611.53, 3,914.46 and 1,309.86 is: 1,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.53 : 3,914.46 = 1,309.86 : x
  2. Step 2: Convert to fraction form
    2,611.53/3,914.46 = 1,309.86/x
  3. Step 3: Cross multiply
    2,611.53x = 3,914.46 × 1,309.86
  4. Step 4: Simplify right side
    2,611.53x = 5,127,394.58
  5. Step 5: Solve for x
    x = 5,127,394.58/2,611.53
  6. Step 6: Final answer
    x = 1,963.37

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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.