Home / 3,328.44-4,991.25-1,478.28

Finding the Fourth Proportional to 3,328.44, 4,991.25 and 1,478.28

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Solution

The fourth proportional to 3,328.44, 4,991.25 and 1,478.28 is: 2,216.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,328.44 : 4,991.25 = 1,478.28 : x
  2. Step 2: Convert to fraction form
    3,328.44/4,991.25 = 1,478.28/x
  3. Step 3: Cross multiply
    3,328.44x = 4,991.25 × 1,478.28
  4. Step 4: Simplify right side
    3,328.44x = 7,378,465.05
  5. Step 5: Solve for x
    x = 7,378,465.05/3,328.44
  6. Step 6: Final answer
    x = 2,216.79

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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.