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Finding the Fourth Proportional to 2,303.81, 3,455.90 and 743.24

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Solution

The fourth proportional to 2,303.81, 3,455.90 and 743.24 is: 1,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,303.81 : 3,455.90 = 743.24 : x
  2. Step 2: Convert to fraction form
    2,303.81/3,455.90 = 743.24/x
  3. Step 3: Cross multiply
    2,303.81x = 3,455.90 × 743.24
  4. Step 4: Simplify right side
    2,303.81x = 2,568,542.12
  5. Step 5: Solve for x
    x = 2,568,542.12/2,303.81
  6. Step 6: Final answer
    x = 1,114.91

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