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Finding the Fourth Proportional to 5,990.53, 8,985.79 and 1,830.55

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Solution

The fourth proportional to 5,990.53, 8,985.79 and 1,830.55 is: 2,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,990.53 : 8,985.79 = 1,830.55 : x
  2. Step 2: Convert to fraction form
    5,990.53/8,985.79 = 1,830.55/x
  3. Step 3: Cross multiply
    5,990.53x = 8,985.79 × 1,830.55
  4. Step 4: Simplify right side
    5,990.53x = 16,448,928.73
  5. Step 5: Solve for x
    x = 16,448,928.73/5,990.53
  6. Step 6: Final answer
    x = 2,745.82

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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.