Home / 6,409.94-9,616.86-3,122.55

Finding the Fourth Proportional to 6,409.94, 9,616.86 and 3,122.55

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Solution

The fourth proportional to 6,409.94, 9,616.86 and 3,122.55 is: 4,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,409.94 : 9,616.86 = 3,122.55 : x
  2. Step 2: Convert to fraction form
    6,409.94/9,616.86 = 3,122.55/x
  3. Step 3: Cross multiply
    6,409.94x = 9,616.86 × 3,122.55
  4. Step 4: Simplify right side
    6,409.94x = 30,029,126.19
  5. Step 5: Solve for x
    x = 30,029,126.19/6,409.94
  6. Step 6: Final answer
    x = 4,684.78

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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.