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Finding the Fourth Proportional to 4,493.66, 6,738.24 and 2,620.20

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Solution

The fourth proportional to 4,493.66, 6,738.24 and 2,620.20 is: 3,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,493.66 : 6,738.24 = 2,620.20 : x
  2. Step 2: Convert to fraction form
    4,493.66/6,738.24 = 2,620.20/x
  3. Step 3: Cross multiply
    4,493.66x = 6,738.24 × 2,620.20
  4. Step 4: Simplify right side
    4,493.66x = 17,655,536.45
  5. Step 5: Solve for x
    x = 17,655,536.45/4,493.66
  6. Step 6: Final answer
    x = 3,928.99

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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.