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Finding the Fourth Proportional to 7,801.82, 11,701.43 and 2,607.68

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Solution

The fourth proportional to 7,801.82, 11,701.43 and 2,607.68 is: 3,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.82 : 11,701.43 = 2,607.68 : x
  2. Step 2: Convert to fraction form
    7,801.82/11,701.43 = 2,607.68/x
  3. Step 3: Cross multiply
    7,801.82x = 11,701.43 × 2,607.68
  4. Step 4: Simplify right side
    7,801.82x = 30,513,584.98
  5. Step 5: Solve for x
    x = 30,513,584.98/7,801.82
  6. Step 6: Final answer
    x = 3,911.09

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1.5x scale

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.