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Finding the Fourth Proportional to 4,908, 6,773.52 and 2,812.32

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Solution

The fourth proportional to 4,908, 6,773.52 and 2,812.32 is: 3,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,908 : 6,773.52 = 2,812.32 : x
  2. Step 2: Convert to fraction form
    4,908/6,773.52 = 2,812.32/x
  3. Step 3: Cross multiply
    4,908x = 6,773.52 × 2,812.32
  4. Step 4: Simplify right side
    4,908x = 19,049,305.77
  5. Step 5: Solve for x
    x = 19,049,305.77/4,908
  6. Step 6: Final answer
    x = 3,881.28

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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.