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Finding the Fourth Proportional to 5,980.75, 8,972.57 and 1,876.75

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Solution

The fourth proportional to 5,980.75, 8,972.57 and 1,876.75 is: 2,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,980.75 : 8,972.57 = 1,876.75 : x
  2. Step 2: Convert to fraction form
    5,980.75/8,972.57 = 1,876.75/x
  3. Step 3: Cross multiply
    5,980.75x = 8,972.57 × 1,876.75
  4. Step 4: Simplify right side
    5,980.75x = 16,839,270.75
  5. Step 5: Solve for x
    x = 16,839,270.75/5,980.75
  6. Step 6: Final answer
    x = 2,815.58

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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.