Home / 3,179.66-4,387.46-1,816.83

Finding the Fourth Proportional to 3,179.66, 4,387.46 and 1,816.83

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Solution

The fourth proportional to 3,179.66, 4,387.46 and 1,816.83 is: 2,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.66 : 4,387.46 = 1,816.83 : x
  2. Step 2: Convert to fraction form
    3,179.66/4,387.46 = 1,816.83/x
  3. Step 3: Cross multiply
    3,179.66x = 4,387.46 × 1,816.83
  4. Step 4: Simplify right side
    3,179.66x = 7,971,268.95
  5. Step 5: Solve for x
    x = 7,971,268.95/3,179.66
  6. Step 6: Final answer
    x = 2,506.96

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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.