Home / 3,216.85-4,817.41-2,905.21

Finding the Fourth Proportional to 3,216.85, 4,817.41 and 2,905.21

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Solution

The fourth proportional to 3,216.85, 4,817.41 and 2,905.21 is: 4,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.85 : 4,817.41 = 2,905.21 : x
  2. Step 2: Convert to fraction form
    3,216.85/4,817.41 = 2,905.21/x
  3. Step 3: Cross multiply
    3,216.85x = 4,817.41 × 2,905.21
  4. Step 4: Simplify right side
    3,216.85x = 13,995,587.71
  5. Step 5: Solve for x
    x = 13,995,587.71/3,216.85
  6. Step 6: Final answer
    x = 4,350.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.