Home / 2,558.20-3,529-1,968.52

Finding the Fourth Proportional to 2,558.20, 3,529 and 1,968.52

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Solution

The fourth proportional to 2,558.20, 3,529 and 1,968.52 is: 2,715.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.20 : 3,529 = 1,968.52 : x
  2. Step 2: Convert to fraction form
    2,558.20/3,529 = 1,968.52/x
  3. Step 3: Cross multiply
    2,558.20x = 3,529 × 1,968.52
  4. Step 4: Simplify right side
    2,558.20x = 6,946,907.08
  5. Step 5: Solve for x
    x = 6,946,907.08/2,558.20
  6. Step 6: Final answer
    x = 2,715.54

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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.