Home / 1,916.56-2,874.78-548.56

Finding the Fourth Proportional to 1,916.56, 2,874.78 and 548.56

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Solution

The fourth proportional to 1,916.56, 2,874.78 and 548.56 is: 822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916.56 : 2,874.78 = 548.56 : x
  2. Step 2: Convert to fraction form
    1,916.56/2,874.78 = 548.56/x
  3. Step 3: Cross multiply
    1,916.56x = 2,874.78 × 548.56
  4. Step 4: Simplify right side
    1,916.56x = 1,576,989.32
  5. Step 5: Solve for x
    x = 1,576,989.32/1,916.56
  6. Step 6: Final answer
    x = 822.82

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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.