Home / 6,309.82-8,708.73-4,185.40

Finding the Fourth Proportional to 6,309.82, 8,708.73 and 4,185.40

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Solution

The fourth proportional to 6,309.82, 8,708.73 and 4,185.40 is: 5,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,309.82 : 8,708.73 = 4,185.40 : x
  2. Step 2: Convert to fraction form
    6,309.82/8,708.73 = 4,185.40/x
  3. Step 3: Cross multiply
    6,309.82x = 8,708.73 × 4,185.40
  4. Step 4: Simplify right side
    6,309.82x = 36,449,518.54
  5. Step 5: Solve for x
    x = 36,449,518.54/6,309.82
  6. Step 6: Final answer
    x = 5,776.63

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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.