Home / 7,172.70-10,749.30-3,712.38

Finding the Fourth Proportional to 7,172.70, 10,749.30 and 3,712.38

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Solution

The fourth proportional to 7,172.70, 10,749.30 and 3,712.38 is: 5,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.70 : 10,749.30 = 3,712.38 : x
  2. Step 2: Convert to fraction form
    7,172.70/10,749.30 = 3,712.38/x
  3. Step 3: Cross multiply
    7,172.70x = 10,749.30 × 3,712.38
  4. Step 4: Simplify right side
    7,172.70x = 39,905,486.33
  5. Step 5: Solve for x
    x = 39,905,486.33/7,172.70
  6. Step 6: Final answer
    x = 5,563.52

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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.