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Finding the Fourth Proportional to 2,873.70, 3,968.24 and 1,813.37

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Solution

The fourth proportional to 2,873.70, 3,968.24 and 1,813.37 is: 2,504.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.70 : 3,968.24 = 1,813.37 : x
  2. Step 2: Convert to fraction form
    2,873.70/3,968.24 = 1,813.37/x
  3. Step 3: Cross multiply
    2,873.70x = 3,968.24 × 1,813.37
  4. Step 4: Simplify right side
    2,873.70x = 7,195,858.46
  5. Step 5: Solve for x
    x = 7,195,858.46/2,873.70
  6. Step 6: Final answer
    x = 2,504.04

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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.