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Finding the Fourth Proportional to 7,778.34, 11,664.81 and 2,583

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Solution

The fourth proportional to 7,778.34, 11,664.81 and 2,583 is: 3,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.34 : 11,664.81 = 2,583 : x
  2. Step 2: Convert to fraction form
    7,778.34/11,664.81 = 2,583/x
  3. Step 3: Cross multiply
    7,778.34x = 11,664.81 × 2,583
  4. Step 4: Simplify right side
    7,778.34x = 30,130,204.23
  5. Step 5: Solve for x
    x = 30,130,204.23/7,778.34
  6. Step 6: Final answer
    x = 3,873.60

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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.