Home / 1,296.68-1,943.73-1,120.29

Finding the Fourth Proportional to 1,296.68, 1,943.73 and 1,120.29

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Solution

The fourth proportional to 1,296.68, 1,943.73 and 1,120.29 is: 1,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.68 : 1,943.73 = 1,120.29 : x
  2. Step 2: Convert to fraction form
    1,296.68/1,943.73 = 1,120.29/x
  3. Step 3: Cross multiply
    1,296.68x = 1,943.73 × 1,120.29
  4. Step 4: Simplify right side
    1,296.68x = 2,177,533.99
  5. Step 5: Solve for x
    x = 2,177,533.99/1,296.68
  6. Step 6: Final answer
    x = 1,679.31

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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.