Home / 2,966.75-4,093.76-1,640.28

Finding the Fourth Proportional to 2,966.75, 4,093.76 and 1,640.28

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Solution

The fourth proportional to 2,966.75, 4,093.76 and 1,640.28 is: 2,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.75 : 4,093.76 = 1,640.28 : x
  2. Step 2: Convert to fraction form
    2,966.75/4,093.76 = 1,640.28/x
  3. Step 3: Cross multiply
    2,966.75x = 4,093.76 × 1,640.28
  4. Step 4: Simplify right side
    2,966.75x = 6,714,912.65
  5. Step 5: Solve for x
    x = 6,714,912.65/2,966.75
  6. Step 6: Final answer
    x = 2,263.39

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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.