Home / 7,119.96-10,681.17-3,172.62

Finding the Fourth Proportional to 7,119.96, 10,681.17 and 3,172.62

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Solution

The fourth proportional to 7,119.96, 10,681.17 and 3,172.62 is: 4,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.96 : 10,681.17 = 3,172.62 : x
  2. Step 2: Convert to fraction form
    7,119.96/10,681.17 = 3,172.62/x
  3. Step 3: Cross multiply
    7,119.96x = 10,681.17 × 3,172.62
  4. Step 4: Simplify right side
    7,119.96x = 33,887,293.57
  5. Step 5: Solve for x
    x = 33,887,293.57/7,119.96
  6. Step 6: Final answer
    x = 4,759.48

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1.5x scale

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.