Home / 3,421.83-4,723.31-2,005.97

Finding the Fourth Proportional to 3,421.83, 4,723.31 and 2,005.97

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Solution

The fourth proportional to 3,421.83, 4,723.31 and 2,005.97 is: 2,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.83 : 4,723.31 = 2,005.97 : x
  2. Step 2: Convert to fraction form
    3,421.83/4,723.31 = 2,005.97/x
  3. Step 3: Cross multiply
    3,421.83x = 4,723.31 × 2,005.97
  4. Step 4: Simplify right side
    3,421.83x = 9,474,808.13
  5. Step 5: Solve for x
    x = 9,474,808.13/3,421.83
  6. Step 6: Final answer
    x = 2,768.93

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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.