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Finding the Fourth Proportional to 2,651.08, 3,958.76 and 2,165.08

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Solution

The fourth proportional to 2,651.08, 3,958.76 and 2,165.08 is: 3,233.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.08 : 3,958.76 = 2,165.08 : x
  2. Step 2: Convert to fraction form
    2,651.08/3,958.76 = 2,165.08/x
  3. Step 3: Cross multiply
    2,651.08x = 3,958.76 × 2,165.08
  4. Step 4: Simplify right side
    2,651.08x = 8,571,032.10
  5. Step 5: Solve for x
    x = 8,571,032.10/2,651.08
  6. Step 6: Final answer
    x = 3,233.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.