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Finding the Fourth Proportional to 3,194.64, 4,409.08 and 1,868.77

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Solution

The fourth proportional to 3,194.64, 4,409.08 and 1,868.77 is: 2,579.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.64 : 4,409.08 = 1,868.77 : x
  2. Step 2: Convert to fraction form
    3,194.64/4,409.08 = 1,868.77/x
  3. Step 3: Cross multiply
    3,194.64x = 4,409.08 × 1,868.77
  4. Step 4: Simplify right side
    3,194.64x = 8,239,567.78
  5. Step 5: Solve for x
    x = 8,239,567.78/3,194.64
  6. Step 6: Final answer
    x = 2,579.19

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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.