Home / 2,821.23-3,892.46-1,824.93

Finding the Fourth Proportional to 2,821.23, 3,892.46 and 1,824.93

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Solution

The fourth proportional to 2,821.23, 3,892.46 and 1,824.93 is: 2,517.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.23 : 3,892.46 = 1,824.93 : x
  2. Step 2: Convert to fraction form
    2,821.23/3,892.46 = 1,824.93/x
  3. Step 3: Cross multiply
    2,821.23x = 3,892.46 × 1,824.93
  4. Step 4: Simplify right side
    2,821.23x = 7,103,457.90
  5. Step 5: Solve for x
    x = 7,103,457.90/2,821.23
  6. Step 6: Final answer
    x = 2,517.86

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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.