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Finding the Fourth Proportional to 2,855.16, 3,940.20 and 1,596.48

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Solution

The fourth proportional to 2,855.16, 3,940.20 and 1,596.48 is: 2,203.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.16 : 3,940.20 = 1,596.48 : x
  2. Step 2: Convert to fraction form
    2,855.16/3,940.20 = 1,596.48/x
  3. Step 3: Cross multiply
    2,855.16x = 3,940.20 × 1,596.48
  4. Step 4: Simplify right side
    2,855.16x = 6,290,450.50
  5. Step 5: Solve for x
    x = 6,290,450.50/2,855.16
  6. Step 6: Final answer
    x = 2,203.19

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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.