Home / 3,974.56-5,487.41-2,558.79

Finding the Fourth Proportional to 3,974.56, 5,487.41 and 2,558.79

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Solution

The fourth proportional to 3,974.56, 5,487.41 and 2,558.79 is: 3,532.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.56 : 5,487.41 = 2,558.79 : x
  2. Step 2: Convert to fraction form
    3,974.56/5,487.41 = 2,558.79/x
  3. Step 3: Cross multiply
    3,974.56x = 5,487.41 × 2,558.79
  4. Step 4: Simplify right side
    3,974.56x = 14,041,136.23
  5. Step 5: Solve for x
    x = 14,041,136.23/3,974.56
  6. Step 6: Final answer
    x = 3,532.75

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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.