Home / 3,479.80-5,218.68-1,013.96

Finding the Fourth Proportional to 3,479.80, 5,218.68 and 1,013.96

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Solution

The fourth proportional to 3,479.80, 5,218.68 and 1,013.96 is: 1,520.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.80 : 5,218.68 = 1,013.96 : x
  2. Step 2: Convert to fraction form
    3,479.80/5,218.68 = 1,013.96/x
  3. Step 3: Cross multiply
    3,479.80x = 5,218.68 × 1,013.96
  4. Step 4: Simplify right side
    3,479.80x = 5,291,529.24
  5. Step 5: Solve for x
    x = 5,291,529.24/3,479.80
  6. Step 6: Final answer
    x = 1,520.64

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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.