Home / 6,479.46-9,717.75-3,147.62

Finding the Fourth Proportional to 6,479.46, 9,717.75 and 3,147.62

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Solution

The fourth proportional to 6,479.46, 9,717.75 and 3,147.62 is: 4,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.46 : 9,717.75 = 3,147.62 : x
  2. Step 2: Convert to fraction form
    6,479.46/9,717.75 = 3,147.62/x
  3. Step 3: Cross multiply
    6,479.46x = 9,717.75 × 3,147.62
  4. Step 4: Simplify right side
    6,479.46x = 30,587,735.67
  5. Step 5: Solve for x
    x = 30,587,735.67/6,479.46
  6. Step 6: Final answer
    x = 4,720.72

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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.