Home / 1,188.98-1,637.41-1,163.54

Finding the Fourth Proportional to 1,188.98, 1,637.41 and 1,163.54

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Solution

The fourth proportional to 1,188.98, 1,637.41 and 1,163.54 is: 1,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188.98 : 1,637.41 = 1,163.54 : x
  2. Step 2: Convert to fraction form
    1,188.98/1,637.41 = 1,163.54/x
  3. Step 3: Cross multiply
    1,188.98x = 1,637.41 × 1,163.54
  4. Step 4: Simplify right side
    1,188.98x = 1,905,180.94
  5. Step 5: Solve for x
    x = 1,905,180.94/1,188.98
  6. Step 6: Final answer
    x = 1,602.37

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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.