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Finding the Fourth Proportional to 2,895.50, 4,343.26 and 843.50

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Solution

The fourth proportional to 2,895.50, 4,343.26 and 843.50 is: 1,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.50 : 4,343.26 = 843.50 : x
  2. Step 2: Convert to fraction form
    2,895.50/4,343.26 = 843.50/x
  3. Step 3: Cross multiply
    2,895.50x = 4,343.26 × 843.50
  4. Step 4: Simplify right side
    2,895.50x = 3,663,539.81
  5. Step 5: Solve for x
    x = 3,663,539.81/2,895.50
  6. Step 6: Final answer
    x = 1,265.25

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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.