Home / 7,086.64-10,629.96-3,186.49

Finding the Fourth Proportional to 7,086.64, 10,629.96 and 3,186.49

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Solution

The fourth proportional to 7,086.64, 10,629.96 and 3,186.49 is: 4,779.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.64 : 10,629.96 = 3,186.49 : x
  2. Step 2: Convert to fraction form
    7,086.64/10,629.96 = 3,186.49/x
  3. Step 3: Cross multiply
    7,086.64x = 10,629.96 × 3,186.49
  4. Step 4: Simplify right side
    7,086.64x = 33,872,261.24
  5. Step 5: Solve for x
    x = 33,872,261.24/7,086.64
  6. Step 6: Final answer
    x = 4,779.74

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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.