Home / 1,916.36-2,644.09-1,170.27

Finding the Fourth Proportional to 1,916.36, 2,644.09 and 1,170.27

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Solution

The fourth proportional to 1,916.36, 2,644.09 and 1,170.27 is: 1,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.36 : 2,644.09 = 1,170.27 : x
  2. Step 2: Convert to fraction form
    1,916.36/2,644.09 = 1,170.27/x
  3. Step 3: Cross multiply
    1,916.36x = 2,644.09 × 1,170.27
  4. Step 4: Simplify right side
    1,916.36x = 3,094,299.20
  5. Step 5: Solve for x
    x = 3,094,299.20/1,916.36
  6. Step 6: Final answer
    x = 1,614.68

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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.