Home / 5,220.36-7,820.73-2,584.80

Finding the Fourth Proportional to 5,220.36, 7,820.73 and 2,584.80

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Solution

The fourth proportional to 5,220.36, 7,820.73 and 2,584.80 is: 3,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.36 : 7,820.73 = 2,584.80 : x
  2. Step 2: Convert to fraction form
    5,220.36/7,820.73 = 2,584.80/x
  3. Step 3: Cross multiply
    5,220.36x = 7,820.73 × 2,584.80
  4. Step 4: Simplify right side
    5,220.36x = 20,215,022.90
  5. Step 5: Solve for x
    x = 20,215,022.90/5,220.36
  6. Step 6: Final answer
    x = 3,872.34

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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.