Home / 3,425.34-5,136.78-1,345.26

Finding the Fourth Proportional to 3,425.34, 5,136.78 and 1,345.26

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Solution

The fourth proportional to 3,425.34, 5,136.78 and 1,345.26 is: 2,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.34 : 5,136.78 = 1,345.26 : x
  2. Step 2: Convert to fraction form
    3,425.34/5,136.78 = 1,345.26/x
  3. Step 3: Cross multiply
    3,425.34x = 5,136.78 × 1,345.26
  4. Step 4: Simplify right side
    3,425.34x = 6,910,304.66
  5. Step 5: Solve for x
    x = 6,910,304.66/3,425.34
  6. Step 6: Final answer
    x = 2,017.41

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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.