Home / 2,806.07-3,871.44-1,812.02

Finding the Fourth Proportional to 2,806.07, 3,871.44 and 1,812.02

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Solution

The fourth proportional to 2,806.07, 3,871.44 and 1,812.02 is: 2,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.07 : 3,871.44 = 1,812.02 : x
  2. Step 2: Convert to fraction form
    2,806.07/3,871.44 = 1,812.02/x
  3. Step 3: Cross multiply
    2,806.07x = 3,871.44 × 1,812.02
  4. Step 4: Simplify right side
    2,806.07x = 7,015,136.39
  5. Step 5: Solve for x
    x = 7,015,136.39/2,806.07
  6. Step 6: Final answer
    x = 2,499.98

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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.