Home / 3,421.62-4,721.54-2,005.14

Finding the Fourth Proportional to 3,421.62, 4,721.54 and 2,005.14

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Solution

The fourth proportional to 3,421.62, 4,721.54 and 2,005.14 is: 2,766.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.62 : 4,721.54 = 2,005.14 : x
  2. Step 2: Convert to fraction form
    3,421.62/4,721.54 = 2,005.14/x
  3. Step 3: Cross multiply
    3,421.62x = 4,721.54 × 2,005.14
  4. Step 4: Simplify right side
    3,421.62x = 9,467,338.69
  5. Step 5: Solve for x
    x = 9,467,338.69/3,421.62
  6. Step 6: Final answer
    x = 2,766.92

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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.