Home / 5,480.98-7,563.21-3,122.98

Finding the Fourth Proportional to 5,480.98, 7,563.21 and 3,122.98

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Solution

The fourth proportional to 5,480.98, 7,563.21 and 3,122.98 is: 4,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.98 : 7,563.21 = 3,122.98 : x
  2. Step 2: Convert to fraction form
    5,480.98/7,563.21 = 3,122.98/x
  3. Step 3: Cross multiply
    5,480.98x = 7,563.21 × 3,122.98
  4. Step 4: Simplify right side
    5,480.98x = 23,619,753.57
  5. Step 5: Solve for x
    x = 23,619,753.57/5,480.98
  6. Step 6: Final answer
    x = 4,309.40

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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.