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Finding the Fourth Proportional to 6,968.45, 10,453.02 and 2,807.90

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Solution

The fourth proportional to 6,968.45, 10,453.02 and 2,807.90 is: 4,211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,968.45 : 10,453.02 = 2,807.90 : x
  2. Step 2: Convert to fraction form
    6,968.45/10,453.02 = 2,807.90/x
  3. Step 3: Cross multiply
    6,968.45x = 10,453.02 × 2,807.90
  4. Step 4: Simplify right side
    6,968.45x = 29,351,011.26
  5. Step 5: Solve for x
    x = 29,351,011.26/6,968.45
  6. Step 6: Final answer
    x = 4,211.99

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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.