Home / 1,576.49-2,175.44-868.23

Finding the Fourth Proportional to 1,576.49, 2,175.44 and 868.23

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Solution

The fourth proportional to 1,576.49, 2,175.44 and 868.23 is: 1,198.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.49 : 2,175.44 = 868.23 : x
  2. Step 2: Convert to fraction form
    1,576.49/2,175.44 = 868.23/x
  3. Step 3: Cross multiply
    1,576.49x = 2,175.44 × 868.23
  4. Step 4: Simplify right side
    1,576.49x = 1,888,777.93
  5. Step 5: Solve for x
    x = 1,888,777.93/1,576.49
  6. Step 6: Final answer
    x = 1,198.09

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1.5x scale

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.