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Finding the Fourth Proportional to 6,144.88, 8,480.80 and 3,493.28

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Solution

The fourth proportional to 6,144.88, 8,480.80 and 3,493.28 is: 4,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.88 : 8,480.80 = 3,493.28 : x
  2. Step 2: Convert to fraction form
    6,144.88/8,480.80 = 3,493.28/x
  3. Step 3: Cross multiply
    6,144.88x = 8,480.80 × 3,493.28
  4. Step 4: Simplify right side
    6,144.88x = 29,625,809.02
  5. Step 5: Solve for x
    x = 29,625,809.02/6,144.88
  6. Step 6: Final answer
    x = 4,821.22

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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.