Home / 1,942.70-2,908.34-1,283.36

Finding the Fourth Proportional to 1,942.70, 2,908.34 and 1,283.36

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Solution

The fourth proportional to 1,942.70, 2,908.34 and 1,283.36 is: 1,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.70 : 2,908.34 = 1,283.36 : x
  2. Step 2: Convert to fraction form
    1,942.70/2,908.34 = 1,283.36/x
  3. Step 3: Cross multiply
    1,942.70x = 2,908.34 × 1,283.36
  4. Step 4: Simplify right side
    1,942.70x = 3,732,440.81
  5. Step 5: Solve for x
    x = 3,732,440.81/1,942.70
  6. Step 6: Final answer
    x = 1,921.26

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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.