Home / 3,069.72-4,233.96-1,949.70

Finding the Fourth Proportional to 3,069.72, 4,233.96 and 1,949.70

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Solution

The fourth proportional to 3,069.72, 4,233.96 and 1,949.70 is: 2,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,069.72 : 4,233.96 = 1,949.70 : x
  2. Step 2: Convert to fraction form
    3,069.72/4,233.96 = 1,949.70/x
  3. Step 3: Cross multiply
    3,069.72x = 4,233.96 × 1,949.70
  4. Step 4: Simplify right side
    3,069.72x = 8,254,951.81
  5. Step 5: Solve for x
    x = 8,254,951.81/3,069.72
  6. Step 6: Final answer
    x = 2,689.15

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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.