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Finding the Fourth Proportional to 4,728.72, 7,093.32 and 1,266

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Solution

The fourth proportional to 4,728.72, 7,093.32 and 1,266 is: 1,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,728.72 : 7,093.32 = 1,266 : x
  2. Step 2: Convert to fraction form
    4,728.72/7,093.32 = 1,266/x
  3. Step 3: Cross multiply
    4,728.72x = 7,093.32 × 1,266
  4. Step 4: Simplify right side
    4,728.72x = 8,980,143.12
  5. Step 5: Solve for x
    x = 8,980,143.12/4,728.72
  6. Step 6: Final answer
    x = 1,899.06

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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.