Home / 2,629.60-3,628.74-1,684.06

Finding the Fourth Proportional to 2,629.60, 3,628.74 and 1,684.06

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Solution

The fourth proportional to 2,629.60, 3,628.74 and 1,684.06 is: 2,323.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.60 : 3,628.74 = 1,684.06 : x
  2. Step 2: Convert to fraction form
    2,629.60/3,628.74 = 1,684.06/x
  3. Step 3: Cross multiply
    2,629.60x = 3,628.74 × 1,684.06
  4. Step 4: Simplify right side
    2,629.60x = 6,111,015.88
  5. Step 5: Solve for x
    x = 6,111,015.88/2,629.60
  6. Step 6: Final answer
    x = 2,323.93

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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.