Home / 1,403.94-1,936.26-1,026.30

Finding the Fourth Proportional to 1,403.94, 1,936.26 and 1,026.30

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Solution

The fourth proportional to 1,403.94, 1,936.26 and 1,026.30 is: 1,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403.94 : 1,936.26 = 1,026.30 : x
  2. Step 2: Convert to fraction form
    1,403.94/1,936.26 = 1,026.30/x
  3. Step 3: Cross multiply
    1,403.94x = 1,936.26 × 1,026.30
  4. Step 4: Simplify right side
    1,403.94x = 1,987,183.64
  5. Step 5: Solve for x
    x = 1,987,183.64/1,403.94
  6. Step 6: Final answer
    x = 1,415.43

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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.