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Finding the Fourth Proportional to 3,791.42, 5,683.52 and 1,324.63

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Solution

The fourth proportional to 3,791.42, 5,683.52 and 1,324.63 is: 1,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.42 : 5,683.52 = 1,324.63 : x
  2. Step 2: Convert to fraction form
    3,791.42/5,683.52 = 1,324.63/x
  3. Step 3: Cross multiply
    3,791.42x = 5,683.52 × 1,324.63
  4. Step 4: Simplify right side
    3,791.42x = 7,528,550.20
  5. Step 5: Solve for x
    x = 7,528,550.20/3,791.42
  6. Step 6: Final answer
    x = 1,985.68

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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.