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Finding the Fourth Proportional to 5,982.50, 8,975.20 and 1,878.50

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Solution

The fourth proportional to 5,982.50, 8,975.20 and 1,878.50 is: 2,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,982.50 : 8,975.20 = 1,878.50 : x
  2. Step 2: Convert to fraction form
    5,982.50/8,975.20 = 1,878.50/x
  3. Step 3: Cross multiply
    5,982.50x = 8,975.20 × 1,878.50
  4. Step 4: Simplify right side
    5,982.50x = 16,859,913.20
  5. Step 5: Solve for x
    x = 16,859,913.20/5,982.50
  6. Step 6: Final answer
    x = 2,818.21

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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.