Home / 6,866.87-10,299.86-2,190.23

Finding the Fourth Proportional to 6,866.87, 10,299.86 and 2,190.23

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Solution

The fourth proportional to 6,866.87, 10,299.86 and 2,190.23 is: 3,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.87 : 10,299.86 = 2,190.23 : x
  2. Step 2: Convert to fraction form
    6,866.87/10,299.86 = 2,190.23/x
  3. Step 3: Cross multiply
    6,866.87x = 10,299.86 × 2,190.23
  4. Step 4: Simplify right side
    6,866.87x = 22,559,054.97
  5. Step 5: Solve for x
    x = 22,559,054.97/6,866.87
  6. Step 6: Final answer
    x = 3,285.20

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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.