Home / 3,479.27-5,217.24-1,398.72

Finding the Fourth Proportional to 3,479.27, 5,217.24 and 1,398.72

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Solution

The fourth proportional to 3,479.27, 5,217.24 and 1,398.72 is: 2,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.27 : 5,217.24 = 1,398.72 : x
  2. Step 2: Convert to fraction form
    3,479.27/5,217.24 = 1,398.72/x
  3. Step 3: Cross multiply
    3,479.27x = 5,217.24 × 1,398.72
  4. Step 4: Simplify right side
    3,479.27x = 7,297,457.93
  5. Step 5: Solve for x
    x = 7,297,457.93/3,479.27
  6. Step 6: Final answer
    x = 2,097.41

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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.