Home / 7,147.05-10,721.38-2,217.93

Finding the Fourth Proportional to 7,147.05, 10,721.38 and 2,217.93

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Solution

The fourth proportional to 7,147.05, 10,721.38 and 2,217.93 is: 3,327.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.05 : 10,721.38 = 2,217.93 : x
  2. Step 2: Convert to fraction form
    7,147.05/10,721.38 = 2,217.93/x
  3. Step 3: Cross multiply
    7,147.05x = 10,721.38 × 2,217.93
  4. Step 4: Simplify right side
    7,147.05x = 23,779,270.34
  5. Step 5: Solve for x
    x = 23,779,270.34/7,147.05
  6. Step 6: Final answer
    x = 3,327.14

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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.