Home / 3,188.46-4,400.01-1,791.21

Finding the Fourth Proportional to 3,188.46, 4,400.01 and 1,791.21

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Solution

The fourth proportional to 3,188.46, 4,400.01 and 1,791.21 is: 2,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.46 : 4,400.01 = 1,791.21 : x
  2. Step 2: Convert to fraction form
    3,188.46/4,400.01 = 1,791.21/x
  3. Step 3: Cross multiply
    3,188.46x = 4,400.01 × 1,791.21
  4. Step 4: Simplify right side
    3,188.46x = 7,881,341.91
  5. Step 5: Solve for x
    x = 7,881,341.91/3,188.46
  6. Step 6: Final answer
    x = 2,471.83

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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.