Home / 1,936.78-2,902.28-1,657.48

Finding the Fourth Proportional to 1,936.78, 2,902.28 and 1,657.48

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Solution

The fourth proportional to 1,936.78, 2,902.28 and 1,657.48 is: 2,483.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.78 : 2,902.28 = 1,657.48 : x
  2. Step 2: Convert to fraction form
    1,936.78/2,902.28 = 1,657.48/x
  3. Step 3: Cross multiply
    1,936.78x = 2,902.28 × 1,657.48
  4. Step 4: Simplify right side
    1,936.78x = 4,810,471.05
  5. Step 5: Solve for x
    x = 4,810,471.05/1,936.78
  6. Step 6: Final answer
    x = 2,483.75

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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.