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Finding the Fourth Proportional to 4,855.64, 6,700.84 and 2,759.78

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Solution

The fourth proportional to 4,855.64, 6,700.84 and 2,759.78 is: 3,808.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,855.64 : 6,700.84 = 2,759.78 : x
  2. Step 2: Convert to fraction form
    4,855.64/6,700.84 = 2,759.78/x
  3. Step 3: Cross multiply
    4,855.64x = 6,700.84 × 2,759.78
  4. Step 4: Simplify right side
    4,855.64x = 18,492,844.22
  5. Step 5: Solve for x
    x = 18,492,844.22/4,855.64
  6. Step 6: Final answer
    x = 3,808.53

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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.