Home / 5,874.24-8,106.40-3,221.60

Finding the Fourth Proportional to 5,874.24, 8,106.40 and 3,221.60

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Solution

The fourth proportional to 5,874.24, 8,106.40 and 3,221.60 is: 4,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,874.24 : 8,106.40 = 3,221.60 : x
  2. Step 2: Convert to fraction form
    5,874.24/8,106.40 = 3,221.60/x
  3. Step 3: Cross multiply
    5,874.24x = 8,106.40 × 3,221.60
  4. Step 4: Simplify right side
    5,874.24x = 26,115,578.24
  5. Step 5: Solve for x
    x = 26,115,578.24/5,874.24
  6. Step 6: Final answer
    x = 4,445.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.