Home / 3,175.81-4,758.09-2,136.68

Finding the Fourth Proportional to 3,175.81, 4,758.09 and 2,136.68

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Solution

The fourth proportional to 3,175.81, 4,758.09 and 2,136.68 is: 3,201.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.81 : 4,758.09 = 2,136.68 : x
  2. Step 2: Convert to fraction form
    3,175.81/4,758.09 = 2,136.68/x
  3. Step 3: Cross multiply
    3,175.81x = 4,758.09 × 2,136.68
  4. Step 4: Simplify right side
    3,175.81x = 10,166,515.74
  5. Step 5: Solve for x
    x = 10,166,515.74/3,175.81
  6. Step 6: Final answer
    x = 3,201.24

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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.