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Finding the Fourth Proportional to 7,802.67, 11,704.01 and 3,188.91

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Solution

The fourth proportional to 7,802.67, 11,704.01 and 3,188.91 is: 4,783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802.67 : 11,704.01 = 3,188.91 : x
  2. Step 2: Convert to fraction form
    7,802.67/11,704.01 = 3,188.91/x
  3. Step 3: Cross multiply
    7,802.67x = 11,704.01 × 3,188.91
  4. Step 4: Simplify right side
    7,802.67x = 37,323,018.58
  5. Step 5: Solve for x
    x = 37,323,018.58/7,802.67
  6. Step 6: Final answer
    x = 4,783.37

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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.