Home / 3,931.23-5,425.01-2,162.87

Finding the Fourth Proportional to 3,931.23, 5,425.01 and 2,162.87

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Solution

The fourth proportional to 3,931.23, 5,425.01 and 2,162.87 is: 2,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.23 : 5,425.01 = 2,162.87 : x
  2. Step 2: Convert to fraction form
    3,931.23/5,425.01 = 2,162.87/x
  3. Step 3: Cross multiply
    3,931.23x = 5,425.01 × 2,162.87
  4. Step 4: Simplify right side
    3,931.23x = 11,733,553.44
  5. Step 5: Solve for x
    x = 11,733,553.44/3,931.23
  6. Step 6: Final answer
    x = 2,984.70

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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.