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Finding the Fourth Proportional to 2,895.37, 4,343.32 and 815.37

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Solution

The fourth proportional to 2,895.37, 4,343.32 and 815.37 is: 1,223.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,895.37 : 4,343.32 = 815.37 : x
  2. Step 2: Convert to fraction form
    2,895.37/4,343.32 = 815.37/x
  3. Step 3: Cross multiply
    2,895.37x = 4,343.32 × 815.37
  4. Step 4: Simplify right side
    2,895.37x = 3,541,391.11
  5. Step 5: Solve for x
    x = 3,541,391.11/2,895.37
  6. Step 6: Final answer
    x = 1,223.12

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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.