Home / 3,016.60-4,524.90-1,979.80

Finding the Fourth Proportional to 3,016.60, 4,524.90 and 1,979.80

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Solution

The fourth proportional to 3,016.60, 4,524.90 and 1,979.80 is: 2,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,016.60 : 4,524.90 = 1,979.80 : x
  2. Step 2: Convert to fraction form
    3,016.60/4,524.90 = 1,979.80/x
  3. Step 3: Cross multiply
    3,016.60x = 4,524.90 × 1,979.80
  4. Step 4: Simplify right side
    3,016.60x = 8,958,397.02
  5. Step 5: Solve for x
    x = 8,958,397.02/3,016.60
  6. Step 6: Final answer
    x = 2,969.70

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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.