Home / 2,922.89-4,376.41-1,945.85

Finding the Fourth Proportional to 2,922.89, 4,376.41 and 1,945.85

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Solution

The fourth proportional to 2,922.89, 4,376.41 and 1,945.85 is: 2,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.89 : 4,376.41 = 1,945.85 : x
  2. Step 2: Convert to fraction form
    2,922.89/4,376.41 = 1,945.85/x
  3. Step 3: Cross multiply
    2,922.89x = 4,376.41 × 1,945.85
  4. Step 4: Simplify right side
    2,922.89x = 8,515,810.65
  5. Step 5: Solve for x
    x = 8,515,810.65/2,922.89
  6. Step 6: Final answer
    x = 2,913.49

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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.