Home / 3,925.68-5,887.71-2,172.39

Finding the Fourth Proportional to 3,925.68, 5,887.71 and 2,172.39

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Solution

The fourth proportional to 3,925.68, 5,887.71 and 2,172.39 is: 3,258.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.68 : 5,887.71 = 2,172.39 : x
  2. Step 2: Convert to fraction form
    3,925.68/5,887.71 = 2,172.39/x
  3. Step 3: Cross multiply
    3,925.68x = 5,887.71 × 2,172.39
  4. Step 4: Simplify right side
    3,925.68x = 12,790,402.33
  5. Step 5: Solve for x
    x = 12,790,402.33/3,925.68
  6. Step 6: Final answer
    x = 3,258.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.