Home / 7,109.47-10,666.03-2,179.15

Finding the Fourth Proportional to 7,109.47, 10,666.03 and 2,179.15

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Solution

The fourth proportional to 7,109.47, 10,666.03 and 2,179.15 is: 3,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.47 : 10,666.03 = 2,179.15 : x
  2. Step 2: Convert to fraction form
    7,109.47/10,666.03 = 2,179.15/x
  3. Step 3: Cross multiply
    7,109.47x = 10,666.03 × 2,179.15
  4. Step 4: Simplify right side
    7,109.47x = 23,242,911.24
  5. Step 5: Solve for x
    x = 23,242,911.24/7,109.47
  6. Step 6: Final answer
    x = 3,269.29

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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.