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Finding the Fourth Proportional to 4,281, 5,912.64 and 2,881.32

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Solution

The fourth proportional to 4,281, 5,912.64 and 2,881.32 is: 3,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281 : 5,912.64 = 2,881.32 : x
  2. Step 2: Convert to fraction form
    4,281/5,912.64 = 2,881.32/x
  3. Step 3: Cross multiply
    4,281x = 5,912.64 × 2,881.32
  4. Step 4: Simplify right side
    4,281x = 17,036,207.88
  5. Step 5: Solve for x
    x = 17,036,207.88/4,281
  6. Step 6: Final answer
    x = 3,979.49

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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.