Home / 1,299.14-1,938.94-1,188.98

Finding the Fourth Proportional to 1,299.14, 1,938.94 and 1,188.98

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Solution

The fourth proportional to 1,299.14, 1,938.94 and 1,188.98 is: 1,774.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299.14 : 1,938.94 = 1,188.98 : x
  2. Step 2: Convert to fraction form
    1,299.14/1,938.94 = 1,188.98/x
  3. Step 3: Cross multiply
    1,299.14x = 1,938.94 × 1,188.98
  4. Step 4: Simplify right side
    1,299.14x = 2,305,360.88
  5. Step 5: Solve for x
    x = 2,305,360.88/1,299.14
  6. Step 6: Final answer
    x = 1,774.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.