Home / 1,961.79-2,938.73-1,094.28

Finding the Fourth Proportional to 1,961.79, 2,938.73 and 1,094.28

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Solution

The fourth proportional to 1,961.79, 2,938.73 and 1,094.28 is: 1,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.79 : 2,938.73 = 1,094.28 : x
  2. Step 2: Convert to fraction form
    1,961.79/2,938.73 = 1,094.28/x
  3. Step 3: Cross multiply
    1,961.79x = 2,938.73 × 1,094.28
  4. Step 4: Simplify right side
    1,961.79x = 3,215,787.99
  5. Step 5: Solve for x
    x = 3,215,787.99/1,961.79
  6. Step 6: Final answer
    x = 1,639.21

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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.