Home / 6,947.80-10,419.37-2,786.74

Finding the Fourth Proportional to 6,947.80, 10,419.37 and 2,786.74

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Solution

The fourth proportional to 6,947.80, 10,419.37 and 2,786.74 is: 4,179.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.80 : 10,419.37 = 2,786.74 : x
  2. Step 2: Convert to fraction form
    6,947.80/10,419.37 = 2,786.74/x
  3. Step 3: Cross multiply
    6,947.80x = 10,419.37 × 2,786.74
  4. Step 4: Simplify right side
    6,947.80x = 29,036,042.14
  5. Step 5: Solve for x
    x = 29,036,042.14/6,947.80
  6. Step 6: Final answer
    x = 4,179.17

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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.