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Finding the Fourth Proportional to 2,662.09, 3,991.80 and 1,551.87

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Solution

The fourth proportional to 2,662.09, 3,991.80 and 1,551.87 is: 2,327.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.09 : 3,991.80 = 1,551.87 : x
  2. Step 2: Convert to fraction form
    2,662.09/3,991.80 = 1,551.87/x
  3. Step 3: Cross multiply
    2,662.09x = 3,991.80 × 1,551.87
  4. Step 4: Simplify right side
    2,662.09x = 6,194,754.67
  5. Step 5: Solve for x
    x = 6,194,754.67/2,662.09
  6. Step 6: Final answer
    x = 2,327.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.