Home / 1,946.36-2,687.22-1,505.31

Finding the Fourth Proportional to 1,946.36, 2,687.22 and 1,505.31

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Solution

The fourth proportional to 1,946.36, 2,687.22 and 1,505.31 is: 2,078.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.36 : 2,687.22 = 1,505.31 : x
  2. Step 2: Convert to fraction form
    1,946.36/2,687.22 = 1,505.31/x
  3. Step 3: Cross multiply
    1,946.36x = 2,687.22 × 1,505.31
  4. Step 4: Simplify right side
    1,946.36x = 4,045,099.14
  5. Step 5: Solve for x
    x = 4,045,099.14/1,946.36
  6. Step 6: Final answer
    x = 2,078.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.