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Finding the Fourth Proportional to 4,800.78, 6,623.91 and 2,704.90

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Solution

The fourth proportional to 4,800.78, 6,623.91 and 2,704.90 is: 3,732.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,800.78 : 6,623.91 = 2,704.90 : x
  2. Step 2: Convert to fraction form
    4,800.78/6,623.91 = 2,704.90/x
  3. Step 3: Cross multiply
    4,800.78x = 6,623.91 × 2,704.90
  4. Step 4: Simplify right side
    4,800.78x = 17,917,014.16
  5. Step 5: Solve for x
    x = 17,917,014.16/4,800.78
  6. Step 6: Final answer
    x = 3,732.10

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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.