Home / 6,680.70-9,219.30-3,993.15

Finding the Fourth Proportional to 6,680.70, 9,219.30 and 3,993.15

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Solution

The fourth proportional to 6,680.70, 9,219.30 and 3,993.15 is: 5,510.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.70 : 9,219.30 = 3,993.15 : x
  2. Step 2: Convert to fraction form
    6,680.70/9,219.30 = 3,993.15/x
  3. Step 3: Cross multiply
    6,680.70x = 9,219.30 × 3,993.15
  4. Step 4: Simplify right side
    6,680.70x = 36,814,047.80
  5. Step 5: Solve for x
    x = 36,814,047.80/6,680.70
  6. Step 6: Final answer
    x = 5,510.51

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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.