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Finding the Fourth Proportional to 5,323, 7,985.60 and 2,245

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Solution

The fourth proportional to 5,323, 7,985.60 and 2,245 is: 3,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323 : 7,985.60 = 2,245 : x
  2. Step 2: Convert to fraction form
    5,323/7,985.60 = 2,245/x
  3. Step 3: Cross multiply
    5,323x = 7,985.60 × 2,245
  4. Step 4: Simplify right side
    5,323x = 17,927,672
  5. Step 5: Solve for x
    x = 17,927,672/5,323
  6. Step 6: Final answer
    x = 3,367.96

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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.