Home / 6,979.12-10,470.21-3,863.67

Finding the Fourth Proportional to 6,979.12, 10,470.21 and 3,863.67

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Solution

The fourth proportional to 6,979.12, 10,470.21 and 3,863.67 is: 5,796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.12 : 10,470.21 = 3,863.67 : x
  2. Step 2: Convert to fraction form
    6,979.12/10,470.21 = 3,863.67/x
  3. Step 3: Cross multiply
    6,979.12x = 10,470.21 × 3,863.67
  4. Step 4: Simplify right side
    6,979.12x = 40,453,383.92
  5. Step 5: Solve for x
    x = 40,453,383.92/6,979.12
  6. Step 6: Final answer
    x = 5,796.35

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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.