Home / 4,781.92-6,601.29-3,191.21

Finding the Fourth Proportional to 4,781.92, 6,601.29 and 3,191.21

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Solution

The fourth proportional to 4,781.92, 6,601.29 and 3,191.21 is: 4,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.92 : 6,601.29 = 3,191.21 : x
  2. Step 2: Convert to fraction form
    4,781.92/6,601.29 = 3,191.21/x
  3. Step 3: Cross multiply
    4,781.92x = 6,601.29 × 3,191.21
  4. Step 4: Simplify right side
    4,781.92x = 21,066,102.66
  5. Step 5: Solve for x
    x = 21,066,102.66/4,781.92
  6. Step 6: Final answer
    x = 4,405.37

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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.