Home / 3,904.84-5,857.44-2,172.16

Finding the Fourth Proportional to 3,904.84, 5,857.44 and 2,172.16

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Solution

The fourth proportional to 3,904.84, 5,857.44 and 2,172.16 is: 3,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.84 : 5,857.44 = 2,172.16 : x
  2. Step 2: Convert to fraction form
    3,904.84/5,857.44 = 2,172.16/x
  3. Step 3: Cross multiply
    3,904.84x = 5,857.44 × 2,172.16
  4. Step 4: Simplify right side
    3,904.84x = 12,723,296.87
  5. Step 5: Solve for x
    x = 12,723,296.87/3,904.84
  6. Step 6: Final answer
    x = 3,258.34

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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.