Home / 3,145.17-4,716.67-923.42

Finding the Fourth Proportional to 3,145.17, 4,716.67 and 923.42

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Solution

The fourth proportional to 3,145.17, 4,716.67 and 923.42 is: 1,384.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.17 : 4,716.67 = 923.42 : x
  2. Step 2: Convert to fraction form
    3,145.17/4,716.67 = 923.42/x
  3. Step 3: Cross multiply
    3,145.17x = 4,716.67 × 923.42
  4. Step 4: Simplify right side
    3,145.17x = 4,355,467.41
  5. Step 5: Solve for x
    x = 4,355,467.41/3,145.17
  6. Step 6: Final answer
    x = 1,384.81

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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.