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Finding the Fourth Proportional to 3,327.64, 4,991.47 and 1,866.91

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Solution

The fourth proportional to 3,327.64, 4,991.47 and 1,866.91 is: 2,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,327.64 : 4,991.47 = 1,866.91 : x
  2. Step 2: Convert to fraction form
    3,327.64/4,991.47 = 1,866.91/x
  3. Step 3: Cross multiply
    3,327.64x = 4,991.47 × 1,866.91
  4. Step 4: Simplify right side
    3,327.64x = 9,318,634.99
  5. Step 5: Solve for x
    x = 9,318,634.99/3,327.64
  6. Step 6: Final answer
    x = 2,800.37

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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.