Home / 5,489.90-8,220.45-4,021.10

Finding the Fourth Proportional to 5,489.90, 8,220.45 and 4,021.10

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Solution

The fourth proportional to 5,489.90, 8,220.45 and 4,021.10 is: 6,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.90 : 8,220.45 = 4,021.10 : x
  2. Step 2: Convert to fraction form
    5,489.90/8,220.45 = 4,021.10/x
  3. Step 3: Cross multiply
    5,489.90x = 8,220.45 × 4,021.10
  4. Step 4: Simplify right side
    5,489.90x = 33,055,251.50
  5. Step 5: Solve for x
    x = 33,055,251.50/5,489.90
  6. Step 6: Final answer
    x = 6,021.10

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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.