Home / 4,086.12-6,129.38-1,164.86

Finding the Fourth Proportional to 4,086.12, 6,129.38 and 1,164.86

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Solution

The fourth proportional to 4,086.12, 6,129.38 and 1,164.86 is: 1,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,086.12 : 6,129.38 = 1,164.86 : x
  2. Step 2: Convert to fraction form
    4,086.12/6,129.38 = 1,164.86/x
  3. Step 3: Cross multiply
    4,086.12x = 6,129.38 × 1,164.86
  4. Step 4: Simplify right side
    4,086.12x = 7,139,841.85
  5. Step 5: Solve for x
    x = 7,139,841.85/4,086.12
  6. Step 6: Final answer
    x = 1,747.34

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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.