Home / 2,806.59-3,873.11-1,628.36

Finding the Fourth Proportional to 2,806.59, 3,873.11 and 1,628.36

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Solution

The fourth proportional to 2,806.59, 3,873.11 and 1,628.36 is: 2,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.59 : 3,873.11 = 1,628.36 : x
  2. Step 2: Convert to fraction form
    2,806.59/3,873.11 = 1,628.36/x
  3. Step 3: Cross multiply
    2,806.59x = 3,873.11 × 1,628.36
  4. Step 4: Simplify right side
    2,806.59x = 6,306,817.40
  5. Step 5: Solve for x
    x = 6,306,817.40/2,806.59
  6. Step 6: Final answer
    x = 2,247.15

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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.