Home / 3,479.37-5,220.34-1,631.09

Finding the Fourth Proportional to 3,479.37, 5,220.34 and 1,631.09

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Solution

The fourth proportional to 3,479.37, 5,220.34 and 1,631.09 is: 2,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.37 : 5,220.34 = 1,631.09 : x
  2. Step 2: Convert to fraction form
    3,479.37/5,220.34 = 1,631.09/x
  3. Step 3: Cross multiply
    3,479.37x = 5,220.34 × 1,631.09
  4. Step 4: Simplify right side
    3,479.37x = 8,514,814.19
  5. Step 5: Solve for x
    x = 8,514,814.19/3,479.37
  6. Step 6: Final answer
    x = 2,447.23

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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.