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Finding the Fourth Proportional to 1,573.47, 2,361.21 and 1,448.31

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Solution

The fourth proportional to 1,573.47, 2,361.21 and 1,448.31 is: 2,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.47 : 2,361.21 = 1,448.31 : x
  2. Step 2: Convert to fraction form
    1,573.47/2,361.21 = 1,448.31/x
  3. Step 3: Cross multiply
    1,573.47x = 2,361.21 × 1,448.31
  4. Step 4: Simplify right side
    1,573.47x = 3,419,764.06
  5. Step 5: Solve for x
    x = 3,419,764.06/1,573.47
  6. Step 6: Final answer
    x = 2,173.39

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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.