Home / 2,810.87-3,873.83-2,253.18

Finding the Fourth Proportional to 2,810.87, 3,873.83 and 2,253.18

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Solution

The fourth proportional to 2,810.87, 3,873.83 and 2,253.18 is: 3,105.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.87 : 3,873.83 = 2,253.18 : x
  2. Step 2: Convert to fraction form
    2,810.87/3,873.83 = 2,253.18/x
  3. Step 3: Cross multiply
    2,810.87x = 3,873.83 × 2,253.18
  4. Step 4: Simplify right side
    2,810.87x = 8,728,425.01
  5. Step 5: Solve for x
    x = 8,728,425.01/2,810.87
  6. Step 6: Final answer
    x = 3,105.25

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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.