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Finding the Fourth Proportional to 4,098, 6,147.60 and 1,323.75

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Solution

The fourth proportional to 4,098, 6,147.60 and 1,323.75 is: 1,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,098 : 6,147.60 = 1,323.75 : x
  2. Step 2: Convert to fraction form
    4,098/6,147.60 = 1,323.75/x
  3. Step 3: Cross multiply
    4,098x = 6,147.60 × 1,323.75
  4. Step 4: Simplify right side
    4,098x = 8,137,885.50
  5. Step 5: Solve for x
    x = 8,137,885.50/4,098
  6. Step 6: Final answer
    x = 1,985.82

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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.