Home / 4,356.72-6,534.36-1,278

Finding the Fourth Proportional to 4,356.72, 6,534.36 and 1,278

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Solution

The fourth proportional to 4,356.72, 6,534.36 and 1,278 is: 1,916.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,356.72 : 6,534.36 = 1,278 : x
  2. Step 2: Convert to fraction form
    4,356.72/6,534.36 = 1,278/x
  3. Step 3: Cross multiply
    4,356.72x = 6,534.36 × 1,278
  4. Step 4: Simplify right side
    4,356.72x = 8,350,912.08
  5. Step 5: Solve for x
    x = 8,350,912.08/4,356.72
  6. Step 6: Final answer
    x = 1,916.79

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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.