Home / 5,736.46-7,916.28-3,218.56

Finding the Fourth Proportional to 5,736.46, 7,916.28 and 3,218.56

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Solution

The fourth proportional to 5,736.46, 7,916.28 and 3,218.56 is: 4,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,736.46 : 7,916.28 = 3,218.56 : x
  2. Step 2: Convert to fraction form
    5,736.46/7,916.28 = 3,218.56/x
  3. Step 3: Cross multiply
    5,736.46x = 7,916.28 × 3,218.56
  4. Step 4: Simplify right side
    5,736.46x = 25,479,042.98
  5. Step 5: Solve for x
    x = 25,479,042.98/5,736.46
  6. Step 6: Final answer
    x = 4,441.60

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1.5x scale

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.