Home / 7,329.12-10,114.14-3,971.88

Finding the Fourth Proportional to 7,329.12, 10,114.14 and 3,971.88

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Solution

The fourth proportional to 7,329.12, 10,114.14 and 3,971.88 is: 5,481.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.12 : 10,114.14 = 3,971.88 : x
  2. Step 2: Convert to fraction form
    7,329.12/10,114.14 = 3,971.88/x
  3. Step 3: Cross multiply
    7,329.12x = 10,114.14 × 3,971.88
  4. Step 4: Simplify right side
    7,329.12x = 40,172,150.38
  5. Step 5: Solve for x
    x = 40,172,150.38/7,329.12
  6. Step 6: Final answer
    x = 5,481.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.