Home / 2,928.57-4,043.67-1,935.21

Finding the Fourth Proportional to 2,928.57, 4,043.67 and 1,935.21

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Solution

The fourth proportional to 2,928.57, 4,043.67 and 1,935.21 is: 2,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.57 : 4,043.67 = 1,935.21 : x
  2. Step 2: Convert to fraction form
    2,928.57/4,043.67 = 1,935.21/x
  3. Step 3: Cross multiply
    2,928.57x = 4,043.67 × 1,935.21
  4. Step 4: Simplify right side
    2,928.57x = 7,825,350.62
  5. Step 5: Solve for x
    x = 7,825,350.62/2,928.57
  6. Step 6: Final answer
    x = 2,672.07

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1.5x scale

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.