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Finding the Fourth Proportional to 5,583.90, 8,363.70 and 3,615.60

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Solution

The fourth proportional to 5,583.90, 8,363.70 and 3,615.60 is: 5,415.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,583.90 : 8,363.70 = 3,615.60 : x
  2. Step 2: Convert to fraction form
    5,583.90/8,363.70 = 3,615.60/x
  3. Step 3: Cross multiply
    5,583.90x = 8,363.70 × 3,615.60
  4. Step 4: Simplify right side
    5,583.90x = 30,239,793.72
  5. Step 5: Solve for x
    x = 30,239,793.72/5,583.90
  6. Step 6: Final answer
    x = 5,415.53

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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.