Home / 3,079.74-4,619.70-1,231.74

Finding the Fourth Proportional to 3,079.74, 4,619.70 and 1,231.74

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Solution

The fourth proportional to 3,079.74, 4,619.70 and 1,231.74 is: 1,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.74 : 4,619.70 = 1,231.74 : x
  2. Step 2: Convert to fraction form
    3,079.74/4,619.70 = 1,231.74/x
  3. Step 3: Cross multiply
    3,079.74x = 4,619.70 × 1,231.74
  4. Step 4: Simplify right side
    3,079.74x = 5,690,269.28
  5. Step 5: Solve for x
    x = 5,690,269.28/3,079.74
  6. Step 6: Final answer
    x = 1,847.65

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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.