Home / 4,008.12-6,012.20-1,086.40

Finding the Fourth Proportional to 4,008.12, 6,012.20 and 1,086.40

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Solution

The fourth proportional to 4,008.12, 6,012.20 and 1,086.40 is: 1,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008.12 : 6,012.20 = 1,086.40 : x
  2. Step 2: Convert to fraction form
    4,008.12/6,012.20 = 1,086.40/x
  3. Step 3: Cross multiply
    4,008.12x = 6,012.20 × 1,086.40
  4. Step 4: Simplify right side
    4,008.12x = 6,531,654.08
  5. Step 5: Solve for x
    x = 6,531,654.08/4,008.12
  6. Step 6: Final answer
    x = 1,629.61

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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.