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Finding the Fourth Proportional to 5,480.99, 7,564.07 and 3,122.68

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Solution

The fourth proportional to 5,480.99, 7,564.07 and 3,122.68 is: 4,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.99 : 7,564.07 = 3,122.68 : x
  2. Step 2: Convert to fraction form
    5,480.99/7,564.07 = 3,122.68/x
  3. Step 3: Cross multiply
    5,480.99x = 7,564.07 × 3,122.68
  4. Step 4: Simplify right side
    5,480.99x = 23,620,170.11
  5. Step 5: Solve for x
    x = 23,620,170.11/5,480.99
  6. Step 6: Final answer
    x = 4,309.47

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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.