Home / 4,321.71-5,956.20-3,140.73

Finding the Fourth Proportional to 4,321.71, 5,956.20 and 3,140.73

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Solution

The fourth proportional to 4,321.71, 5,956.20 and 3,140.73 is: 4,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.71 : 5,956.20 = 3,140.73 : x
  2. Step 2: Convert to fraction form
    4,321.71/5,956.20 = 3,140.73/x
  3. Step 3: Cross multiply
    4,321.71x = 5,956.20 × 3,140.73
  4. Step 4: Simplify right side
    4,321.71x = 18,706,816.03
  5. Step 5: Solve for x
    x = 18,706,816.03/4,321.71
  6. Step 6: Final answer
    x = 4,328.57

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Double scale
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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.