Home / 3,278.72-4,916.64-1,739.36

Finding the Fourth Proportional to 3,278.72, 4,916.64 and 1,739.36

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Solution

The fourth proportional to 3,278.72, 4,916.64 and 1,739.36 is: 2,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.72 : 4,916.64 = 1,739.36 : x
  2. Step 2: Convert to fraction form
    3,278.72/4,916.64 = 1,739.36/x
  3. Step 3: Cross multiply
    3,278.72x = 4,916.64 × 1,739.36
  4. Step 4: Simplify right side
    3,278.72x = 8,551,806.95
  5. Step 5: Solve for x
    x = 8,551,806.95/3,278.72
  6. Step 6: Final answer
    x = 2,608.28

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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.