Home / 4,121.75-5,685.49-3,366.63

Finding the Fourth Proportional to 4,121.75, 5,685.49 and 3,366.63

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Solution

The fourth proportional to 4,121.75, 5,685.49 and 3,366.63 is: 4,643.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.75 : 5,685.49 = 3,366.63 : x
  2. Step 2: Convert to fraction form
    4,121.75/5,685.49 = 3,366.63/x
  3. Step 3: Cross multiply
    4,121.75x = 5,685.49 × 3,366.63
  4. Step 4: Simplify right side
    4,121.75x = 19,140,945.41
  5. Step 5: Solve for x
    x = 19,140,945.41/4,121.75
  6. Step 6: Final answer
    x = 4,643.89

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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.