Home / 7,781.64-11,665.18-2,583.88

Finding the Fourth Proportional to 7,781.64, 11,665.18 and 2,583.88

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Solution

The fourth proportional to 7,781.64, 11,665.18 and 2,583.88 is: 3,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.64 : 11,665.18 = 2,583.88 : x
  2. Step 2: Convert to fraction form
    7,781.64/11,665.18 = 2,583.88/x
  3. Step 3: Cross multiply
    7,781.64x = 11,665.18 × 2,583.88
  4. Step 4: Simplify right side
    7,781.64x = 30,141,425.30
  5. Step 5: Solve for x
    x = 30,141,425.30/7,781.64
  6. Step 6: Final answer
    x = 3,873.40

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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.