Home / 3,425.33-5,136.78-1,345.25

Finding the Fourth Proportional to 3,425.33, 5,136.78 and 1,345.25

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Solution

The fourth proportional to 3,425.33, 5,136.78 and 1,345.25 is: 2,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.33 : 5,136.78 = 1,345.25 : x
  2. Step 2: Convert to fraction form
    3,425.33/5,136.78 = 1,345.25/x
  3. Step 3: Cross multiply
    3,425.33x = 5,136.78 × 1,345.25
  4. Step 4: Simplify right side
    3,425.33x = 6,910,253.30
  5. Step 5: Solve for x
    x = 6,910,253.30/3,425.33
  6. Step 6: Final answer
    x = 2,017.40

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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.