Home / 3,151.56-4,702.71-2,823.60

Finding the Fourth Proportional to 3,151.56, 4,702.71 and 2,823.60

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Solution

The fourth proportional to 3,151.56, 4,702.71 and 2,823.60 is: 4,213.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.56 : 4,702.71 = 2,823.60 : x
  2. Step 2: Convert to fraction form
    3,151.56/4,702.71 = 2,823.60/x
  3. Step 3: Cross multiply
    3,151.56x = 4,702.71 × 2,823.60
  4. Step 4: Simplify right side
    3,151.56x = 13,278,571.96
  5. Step 5: Solve for x
    x = 13,278,571.96/3,151.56
  6. Step 6: Final answer
    x = 4,213.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.