Home / 3,216.54-4,438.38-1,890.36

Finding the Fourth Proportional to 3,216.54, 4,438.38 and 1,890.36

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Solution

The fourth proportional to 3,216.54, 4,438.38 and 1,890.36 is: 2,608.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.54 : 4,438.38 = 1,890.36 : x
  2. Step 2: Convert to fraction form
    3,216.54/4,438.38 = 1,890.36/x
  3. Step 3: Cross multiply
    3,216.54x = 4,438.38 × 1,890.36
  4. Step 4: Simplify right side
    3,216.54x = 8,390,136.02
  5. Step 5: Solve for x
    x = 8,390,136.02/3,216.54
  6. Step 6: Final answer
    x = 2,608.44

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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.