Home / 2,309.07-3,462.39-1,321.89

Finding the Fourth Proportional to 2,309.07, 3,462.39 and 1,321.89

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Solution

The fourth proportional to 2,309.07, 3,462.39 and 1,321.89 is: 1,982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.07 : 3,462.39 = 1,321.89 : x
  2. Step 2: Convert to fraction form
    2,309.07/3,462.39 = 1,321.89/x
  3. Step 3: Cross multiply
    2,309.07x = 3,462.39 × 1,321.89
  4. Step 4: Simplify right side
    2,309.07x = 4,576,898.72
  5. Step 5: Solve for x
    x = 4,576,898.72/2,309.07
  6. Step 6: Final answer
    x = 1,982.14

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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.