Home / 7,408.50-11,112.75-1,936.50

Finding the Fourth Proportional to 7,408.50, 11,112.75 and 1,936.50

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Solution

The fourth proportional to 7,408.50, 11,112.75 and 1,936.50 is: 2,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.50 : 11,112.75 = 1,936.50 : x
  2. Step 2: Convert to fraction form
    7,408.50/11,112.75 = 1,936.50/x
  3. Step 3: Cross multiply
    7,408.50x = 11,112.75 × 1,936.50
  4. Step 4: Simplify right side
    7,408.50x = 21,519,840.38
  5. Step 5: Solve for x
    x = 21,519,840.38/7,408.50
  6. Step 6: Final answer
    x = 2,904.75

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Double scale
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Similar ratio
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1.5x scale

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.