Home / 3,421.33-4,722.62-2,005.47

Finding the Fourth Proportional to 3,421.33, 4,722.62 and 2,005.47

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Solution

The fourth proportional to 3,421.33, 4,722.62 and 2,005.47 is: 2,768.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.33 : 4,722.62 = 2,005.47 : x
  2. Step 2: Convert to fraction form
    3,421.33/4,722.62 = 2,005.47/x
  3. Step 3: Cross multiply
    3,421.33x = 4,722.62 × 2,005.47
  4. Step 4: Simplify right side
    3,421.33x = 9,471,062.70
  5. Step 5: Solve for x
    x = 9,471,062.70/3,421.33
  6. Step 6: Final answer
    x = 2,768.24

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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.