Home / 5,458.43-8,187.18-2,170.64

Finding the Fourth Proportional to 5,458.43, 8,187.18 and 2,170.64

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Solution

The fourth proportional to 5,458.43, 8,187.18 and 2,170.64 is: 3,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.43 : 8,187.18 = 2,170.64 : x
  2. Step 2: Convert to fraction form
    5,458.43/8,187.18 = 2,170.64/x
  3. Step 3: Cross multiply
    5,458.43x = 8,187.18 × 2,170.64
  4. Step 4: Simplify right side
    5,458.43x = 17,771,420.40
  5. Step 5: Solve for x
    x = 17,771,420.40/5,458.43
  6. Step 6: Final answer
    x = 3,255.78

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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.