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Finding the Fourth Proportional to 4,321.63, 5,965.05 and 2,554.21

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Solution

The fourth proportional to 4,321.63, 5,965.05 and 2,554.21 is: 3,525.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.63 : 5,965.05 = 2,554.21 : x
  2. Step 2: Convert to fraction form
    4,321.63/5,965.05 = 2,554.21/x
  3. Step 3: Cross multiply
    4,321.63x = 5,965.05 × 2,554.21
  4. Step 4: Simplify right side
    4,321.63x = 15,235,990.36
  5. Step 5: Solve for x
    x = 15,235,990.36/4,321.63
  6. Step 6: Final answer
    x = 3,525.52

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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.