Home / 7,086.29-10,629.43-3,969.20

Finding the Fourth Proportional to 7,086.29, 10,629.43 and 3,969.20

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Solution

The fourth proportional to 7,086.29, 10,629.43 and 3,969.20 is: 5,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.29 : 10,629.43 = 3,969.20 : x
  2. Step 2: Convert to fraction form
    7,086.29/10,629.43 = 3,969.20/x
  3. Step 3: Cross multiply
    7,086.29x = 10,629.43 × 3,969.20
  4. Step 4: Simplify right side
    7,086.29x = 42,190,350.21
  5. Step 5: Solve for x
    x = 42,190,350.21/7,086.29
  6. Step 6: Final answer
    x = 5,953.80

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Similar ratio
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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.