Home / 2,629.08-3,945.96-1,977.84

Finding the Fourth Proportional to 2,629.08, 3,945.96 and 1,977.84

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Solution

The fourth proportional to 2,629.08, 3,945.96 and 1,977.84 is: 2,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.08 : 3,945.96 = 1,977.84 : x
  2. Step 2: Convert to fraction form
    2,629.08/3,945.96 = 1,977.84/x
  3. Step 3: Cross multiply
    2,629.08x = 3,945.96 × 1,977.84
  4. Step 4: Simplify right side
    2,629.08x = 7,804,477.53
  5. Step 5: Solve for x
    x = 7,804,477.53/2,629.08
  6. Step 6: Final answer
    x = 2,968.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.