Home / 1,821.08-2,728.49-1,433.57

Finding the Fourth Proportional to 1,821.08, 2,728.49 and 1,433.57

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Solution

The fourth proportional to 1,821.08, 2,728.49 and 1,433.57 is: 2,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.08 : 2,728.49 = 1,433.57 : x
  2. Step 2: Convert to fraction form
    1,821.08/2,728.49 = 1,433.57/x
  3. Step 3: Cross multiply
    1,821.08x = 2,728.49 × 1,433.57
  4. Step 4: Simplify right side
    1,821.08x = 3,911,460.60
  5. Step 5: Solve for x
    x = 3,911,460.60/1,821.08
  6. Step 6: Final answer
    x = 2,147.88

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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.