Home / 2,083.38-2,873.79-1,420.54

Finding the Fourth Proportional to 2,083.38, 2,873.79 and 1,420.54

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Solution

The fourth proportional to 2,083.38, 2,873.79 and 1,420.54 is: 1,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,083.38 : 2,873.79 = 1,420.54 : x
  2. Step 2: Convert to fraction form
    2,083.38/2,873.79 = 1,420.54/x
  3. Step 3: Cross multiply
    2,083.38x = 2,873.79 × 1,420.54
  4. Step 4: Simplify right side
    2,083.38x = 4,082,333.65
  5. Step 5: Solve for x
    x = 4,082,333.65/2,083.38
  6. Step 6: Final answer
    x = 1,959.48

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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.