Home / 3,217.23-4,439.84-1,890.99

Finding the Fourth Proportional to 3,217.23, 4,439.84 and 1,890.99

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Solution

The fourth proportional to 3,217.23, 4,439.84 and 1,890.99 is: 2,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.23 : 4,439.84 = 1,890.99 : x
  2. Step 2: Convert to fraction form
    3,217.23/4,439.84 = 1,890.99/x
  3. Step 3: Cross multiply
    3,217.23x = 4,439.84 × 1,890.99
  4. Step 4: Simplify right side
    3,217.23x = 8,395,683.59
  5. Step 5: Solve for x
    x = 8,395,683.59/3,217.23
  6. Step 6: Final answer
    x = 2,609.60

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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.