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Finding the Fourth Proportional to 6,993.19, 10,479.98 and 3,479.86

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Solution

The fourth proportional to 6,993.19, 10,479.98 and 3,479.86 is: 5,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,993.19 : 10,479.98 = 3,479.86 : x
  2. Step 2: Convert to fraction form
    6,993.19/10,479.98 = 3,479.86/x
  3. Step 3: Cross multiply
    6,993.19x = 10,479.98 × 3,479.86
  4. Step 4: Simplify right side
    6,993.19x = 36,468,863.20
  5. Step 5: Solve for x
    x = 36,468,863.20/6,993.19
  6. Step 6: Final answer
    x = 5,214.91

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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.