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Finding the Fourth Proportional to 2,863.37, 3,951.18 and 1,621.37

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Solution

The fourth proportional to 2,863.37, 3,951.18 and 1,621.37 is: 2,237.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.37 : 3,951.18 = 1,621.37 : x
  2. Step 2: Convert to fraction form
    2,863.37/3,951.18 = 1,621.37/x
  3. Step 3: Cross multiply
    2,863.37x = 3,951.18 × 1,621.37
  4. Step 4: Simplify right side
    2,863.37x = 6,406,324.72
  5. Step 5: Solve for x
    x = 6,406,324.72/2,863.37
  6. Step 6: Final answer
    x = 2,237.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.