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Finding the Fourth Proportional to 5,978.44, 8,967.99 and 1,818.60

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Solution

The fourth proportional to 5,978.44, 8,967.99 and 1,818.60 is: 2,728.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.44 : 8,967.99 = 1,818.60 : x
  2. Step 2: Convert to fraction form
    5,978.44/8,967.99 = 1,818.60/x
  3. Step 3: Cross multiply
    5,978.44x = 8,967.99 × 1,818.60
  4. Step 4: Simplify right side
    5,978.44x = 16,309,186.61
  5. Step 5: Solve for x
    x = 16,309,186.61/5,978.44
  6. Step 6: Final answer
    x = 2,728.00

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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.