Home / 2,629.30-3,946.68-1,936.75

Finding the Fourth Proportional to 2,629.30, 3,946.68 and 1,936.75

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Solution

The fourth proportional to 2,629.30, 3,946.68 and 1,936.75 is: 2,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,629.30 : 3,946.68 = 1,936.75 : x
  2. Step 2: Convert to fraction form
    2,629.30/3,946.68 = 1,936.75/x
  3. Step 3: Cross multiply
    2,629.30x = 3,946.68 × 1,936.75
  4. Step 4: Simplify right side
    2,629.30x = 7,643,712.76
  5. Step 5: Solve for x
    x = 7,643,712.76/2,629.30
  6. Step 6: Final answer
    x = 2,907.13

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1.5x scale

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.