Home / 2,629.64-3,935.95-1,936.16

Finding the Fourth Proportional to 2,629.64, 3,935.95 and 1,936.16

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Solution

The fourth proportional to 2,629.64, 3,935.95 and 1,936.16 is: 2,897.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.64 : 3,935.95 = 1,936.16 : x
  2. Step 2: Convert to fraction form
    2,629.64/3,935.95 = 1,936.16/x
  3. Step 3: Cross multiply
    2,629.64x = 3,935.95 × 1,936.16
  4. Step 4: Simplify right side
    2,629.64x = 7,620,628.95
  5. Step 5: Solve for x
    x = 7,620,628.95/2,629.64
  6. Step 6: Final answer
    x = 2,897.97

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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.