Home / 2,809.65-4,213.26-2,160.84

Finding the Fourth Proportional to 2,809.65, 4,213.26 and 2,160.84

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Solution

The fourth proportional to 2,809.65, 4,213.26 and 2,160.84 is: 3,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.65 : 4,213.26 = 2,160.84 : x
  2. Step 2: Convert to fraction form
    2,809.65/4,213.26 = 2,160.84/x
  3. Step 3: Cross multiply
    2,809.65x = 4,213.26 × 2,160.84
  4. Step 4: Simplify right side
    2,809.65x = 9,104,180.74
  5. Step 5: Solve for x
    x = 9,104,180.74/2,809.65
  6. Step 6: Final answer
    x = 3,240.33

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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.