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Finding the Fourth Proportional to 2,969.87, 4,452.37 and 1,119.93

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Solution

The fourth proportional to 2,969.87, 4,452.37 and 1,119.93 is: 1,678.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,969.87 : 4,452.37 = 1,119.93 : x
  2. Step 2: Convert to fraction form
    2,969.87/4,452.37 = 1,119.93/x
  3. Step 3: Cross multiply
    2,969.87x = 4,452.37 × 1,119.93
  4. Step 4: Simplify right side
    2,969.87x = 4,986,323.24
  5. Step 5: Solve for x
    x = 4,986,323.24/2,969.87
  6. Step 6: Final answer
    x = 1,678.97

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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.