Home / 4,789.16-7,190.81-2,947.98

Finding the Fourth Proportional to 4,789.16, 7,190.81 and 2,947.98

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Solution

The fourth proportional to 4,789.16, 7,190.81 and 2,947.98 is: 4,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.16 : 7,190.81 = 2,947.98 : x
  2. Step 2: Convert to fraction form
    4,789.16/7,190.81 = 2,947.98/x
  3. Step 3: Cross multiply
    4,789.16x = 7,190.81 × 2,947.98
  4. Step 4: Simplify right side
    4,789.16x = 21,198,364.06
  5. Step 5: Solve for x
    x = 21,198,364.06/4,789.16
  6. Step 6: Final answer
    x = 4,426.32

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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.