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Finding the Fourth Proportional to 4,797.34, 6,620.51 and 2,780.82

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Solution

The fourth proportional to 4,797.34, 6,620.51 and 2,780.82 is: 3,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797.34 : 6,620.51 = 2,780.82 : x
  2. Step 2: Convert to fraction form
    4,797.34/6,620.51 = 2,780.82/x
  3. Step 3: Cross multiply
    4,797.34x = 6,620.51 × 2,780.82
  4. Step 4: Simplify right side
    4,797.34x = 18,410,416.61
  5. Step 5: Solve for x
    x = 18,410,416.61/4,797.34
  6. Step 6: Final answer
    x = 3,837.63

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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.