Home / 1,821.33-2,513.49-1,709.85

Finding the Fourth Proportional to 1,821.33, 2,513.49 and 1,709.85

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Solution

The fourth proportional to 1,821.33, 2,513.49 and 1,709.85 is: 2,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.33 : 2,513.49 = 1,709.85 : x
  2. Step 2: Convert to fraction form
    1,821.33/2,513.49 = 1,709.85/x
  3. Step 3: Cross multiply
    1,821.33x = 2,513.49 × 1,709.85
  4. Step 4: Simplify right side
    1,821.33x = 4,297,693.89
  5. Step 5: Solve for x
    x = 4,297,693.89/1,821.33
  6. Step 6: Final answer
    x = 2,359.65

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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.