Home / 3,421.73-4,723.16-2,005.86

Finding the Fourth Proportional to 3,421.73, 4,723.16 and 2,005.86

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Solution

The fourth proportional to 3,421.73, 4,723.16 and 2,005.86 is: 2,768.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.73 : 4,723.16 = 2,005.86 : x
  2. Step 2: Convert to fraction form
    3,421.73/4,723.16 = 2,005.86/x
  3. Step 3: Cross multiply
    3,421.73x = 4,723.16 × 2,005.86
  4. Step 4: Simplify right side
    3,421.73x = 9,473,997.72
  5. Step 5: Solve for x
    x = 9,473,997.72/3,421.73
  6. Step 6: Final answer
    x = 2,768.77

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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.