Home / 3,129.71-4,668.17-2,662.27

Finding the Fourth Proportional to 3,129.71, 4,668.17 and 2,662.27

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Solution

The fourth proportional to 3,129.71, 4,668.17 and 2,662.27 is: 3,970.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.71 : 4,668.17 = 2,662.27 : x
  2. Step 2: Convert to fraction form
    3,129.71/4,668.17 = 2,662.27/x
  3. Step 3: Cross multiply
    3,129.71x = 4,668.17 × 2,662.27
  4. Step 4: Simplify right side
    3,129.71x = 12,427,903.96
  5. Step 5: Solve for x
    x = 12,427,903.96/3,129.71
  6. Step 6: Final answer
    x = 3,970.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.