Home / 3,219.03-4,441.61-1,821.51

Finding the Fourth Proportional to 3,219.03, 4,441.61 and 1,821.51

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Solution

The fourth proportional to 3,219.03, 4,441.61 and 1,821.51 is: 2,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.03 : 4,441.61 = 1,821.51 : x
  2. Step 2: Convert to fraction form
    3,219.03/4,441.61 = 1,821.51/x
  3. Step 3: Cross multiply
    3,219.03x = 4,441.61 × 1,821.51
  4. Step 4: Simplify right side
    3,219.03x = 8,090,427.92
  5. Step 5: Solve for x
    x = 8,090,427.92/3,219.03
  6. Step 6: Final answer
    x = 2,513.31

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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.