Home / 2,311.62-3,467.79-1,386.96

Finding the Fourth Proportional to 2,311.62, 3,467.79 and 1,386.96

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Solution

The fourth proportional to 2,311.62, 3,467.79 and 1,386.96 is: 2,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.62 : 3,467.79 = 1,386.96 : x
  2. Step 2: Convert to fraction form
    2,311.62/3,467.79 = 1,386.96/x
  3. Step 3: Cross multiply
    2,311.62x = 3,467.79 × 1,386.96
  4. Step 4: Simplify right side
    2,311.62x = 4,809,686.02
  5. Step 5: Solve for x
    x = 4,809,686.02/2,311.62
  6. Step 6: Final answer
    x = 2,080.66

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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.