Home / 3,216.59-4,439.99-1,890.69

Finding the Fourth Proportional to 3,216.59, 4,439.99 and 1,890.69

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Solution

The fourth proportional to 3,216.59, 4,439.99 and 1,890.69 is: 2,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.59 : 4,439.99 = 1,890.69 : x
  2. Step 2: Convert to fraction form
    3,216.59/4,439.99 = 1,890.69/x
  3. Step 3: Cross multiply
    3,216.59x = 4,439.99 × 1,890.69
  4. Step 4: Simplify right side
    3,216.59x = 8,394,649.42
  5. Step 5: Solve for x
    x = 8,394,649.42/3,216.59
  6. Step 6: Final answer
    x = 2,609.80

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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.