Home / 1,573.41-2,172.89-1,296.39

Finding the Fourth Proportional to 1,573.41, 2,172.89 and 1,296.39

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Solution

The fourth proportional to 1,573.41, 2,172.89 and 1,296.39 is: 1,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.41 : 2,172.89 = 1,296.39 : x
  2. Step 2: Convert to fraction form
    1,573.41/2,172.89 = 1,296.39/x
  3. Step 3: Cross multiply
    1,573.41x = 2,172.89 × 1,296.39
  4. Step 4: Simplify right side
    1,573.41x = 2,816,912.87
  5. Step 5: Solve for x
    x = 2,816,912.87/1,573.41
  6. Step 6: Final answer
    x = 1,790.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.