Home / 5,292.05-7,938.54-2,172.29

Finding the Fourth Proportional to 5,292.05, 7,938.54 and 2,172.29

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Solution

The fourth proportional to 5,292.05, 7,938.54 and 2,172.29 is: 3,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.05 : 7,938.54 = 2,172.29 : x
  2. Step 2: Convert to fraction form
    5,292.05/7,938.54 = 2,172.29/x
  3. Step 3: Cross multiply
    5,292.05x = 7,938.54 × 2,172.29
  4. Step 4: Simplify right side
    5,292.05x = 17,244,811.06
  5. Step 5: Solve for x
    x = 17,244,811.06/5,292.05
  6. Step 6: Final answer
    x = 3,258.63

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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.