Home / 2,806.61-3,873.13-1,628.37

Finding the Fourth Proportional to 2,806.61, 3,873.13 and 1,628.37

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Solution

The fourth proportional to 2,806.61, 3,873.13 and 1,628.37 is: 2,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.61 : 3,873.13 = 1,628.37 : x
  2. Step 2: Convert to fraction form
    2,806.61/3,873.13 = 1,628.37/x
  3. Step 3: Cross multiply
    2,806.61x = 3,873.13 × 1,628.37
  4. Step 4: Simplify right side
    2,806.61x = 6,306,888.70
  5. Step 5: Solve for x
    x = 6,306,888.70/2,806.61
  6. Step 6: Final answer
    x = 2,247.16

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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.