Home / 2,821.33-3,892.13-1,826.93

Finding the Fourth Proportional to 2,821.33, 3,892.13 and 1,826.93

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Solution

The fourth proportional to 2,821.33, 3,892.13 and 1,826.93 is: 2,520.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.33 : 3,892.13 = 1,826.93 : x
  2. Step 2: Convert to fraction form
    2,821.33/3,892.13 = 1,826.93/x
  3. Step 3: Cross multiply
    2,821.33x = 3,892.13 × 1,826.93
  4. Step 4: Simplify right side
    2,821.33x = 7,110,620.47
  5. Step 5: Solve for x
    x = 7,110,620.47/2,821.33
  6. Step 6: Final answer
    x = 2,520.31

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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.