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Finding the Fourth Proportional to 3,955.83, 5,933.75 and 1,491.21

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Solution

The fourth proportional to 3,955.83, 5,933.75 and 1,491.21 is: 2,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.83 : 5,933.75 = 1,491.21 : x
  2. Step 2: Convert to fraction form
    3,955.83/5,933.75 = 1,491.21/x
  3. Step 3: Cross multiply
    3,955.83x = 5,933.75 × 1,491.21
  4. Step 4: Simplify right side
    3,955.83x = 8,848,430.21
  5. Step 5: Solve for x
    x = 8,848,430.21/3,955.83
  6. Step 6: Final answer
    x = 2,236.81

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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.