Home / 6,629.40-9,945.78-1,949.57

Finding the Fourth Proportional to 6,629.40, 9,945.78 and 1,949.57

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Solution

The fourth proportional to 6,629.40, 9,945.78 and 1,949.57 is: 2,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.40 : 9,945.78 = 1,949.57 : x
  2. Step 2: Convert to fraction form
    6,629.40/9,945.78 = 1,949.57/x
  3. Step 3: Cross multiply
    6,629.40x = 9,945.78 × 1,949.57
  4. Step 4: Simplify right side
    6,629.40x = 19,389,934.84
  5. Step 5: Solve for x
    x = 19,389,934.84/6,629.40
  6. Step 6: Final answer
    x = 2,924.84

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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.