Home / 1,452.12-2,176.26-629.28

Finding the Fourth Proportional to 1,452.12, 2,176.26 and 629.28

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Solution

The fourth proportional to 1,452.12, 2,176.26 and 629.28 is: 943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.12 : 2,176.26 = 629.28 : x
  2. Step 2: Convert to fraction form
    1,452.12/2,176.26 = 629.28/x
  3. Step 3: Cross multiply
    1,452.12x = 2,176.26 × 629.28
  4. Step 4: Simplify right side
    1,452.12x = 1,369,476.89
  5. Step 5: Solve for x
    x = 1,369,476.89/1,452.12
  6. Step 6: Final answer
    x = 943.09

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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.