Home / 1,916.24-2,644.40-1,076.96

Finding the Fourth Proportional to 1,916.24, 2,644.40 and 1,076.96

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Solution

The fourth proportional to 1,916.24, 2,644.40 and 1,076.96 is: 1,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.24 : 2,644.40 = 1,076.96 : x
  2. Step 2: Convert to fraction form
    1,916.24/2,644.40 = 1,076.96/x
  3. Step 3: Cross multiply
    1,916.24x = 2,644.40 × 1,076.96
  4. Step 4: Simplify right side
    1,916.24x = 2,847,922.33
  5. Step 5: Solve for x
    x = 2,847,922.33/1,916.24
  6. Step 6: Final answer
    x = 1,486.21

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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.