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Finding the Fourth Proportional to 7,714.64, 11,563.32 and 3,602

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Solution

The fourth proportional to 7,714.64, 11,563.32 and 3,602 is: 5,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.64 : 11,563.32 = 3,602 : x
  2. Step 2: Convert to fraction form
    7,714.64/11,563.32 = 3,602/x
  3. Step 3: Cross multiply
    7,714.64x = 11,563.32 × 3,602
  4. Step 4: Simplify right side
    7,714.64x = 41,651,078.64
  5. Step 5: Solve for x
    x = 41,651,078.64/7,714.64
  6. Step 6: Final answer
    x = 5,398.97

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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.