Home / 2,172.33-3,258-1,001.21

Finding the Fourth Proportional to 2,172.33, 3,258 and 1,001.21

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Solution

The fourth proportional to 2,172.33, 3,258 and 1,001.21 is: 1,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172.33 : 3,258 = 1,001.21 : x
  2. Step 2: Convert to fraction form
    2,172.33/3,258 = 1,001.21/x
  3. Step 3: Cross multiply
    2,172.33x = 3,258 × 1,001.21
  4. Step 4: Simplify right side
    2,172.33x = 3,261,942.18
  5. Step 5: Solve for x
    x = 3,261,942.18/2,172.33
  6. Step 6: Final answer
    x = 1,501.59

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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.