Home / 2,335.88-3,222.09-1,391.04

Finding the Fourth Proportional to 2,335.88, 3,222.09 and 1,391.04

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Solution

The fourth proportional to 2,335.88, 3,222.09 and 1,391.04 is: 1,918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.88 : 3,222.09 = 1,391.04 : x
  2. Step 2: Convert to fraction form
    2,335.88/3,222.09 = 1,391.04/x
  3. Step 3: Cross multiply
    2,335.88x = 3,222.09 × 1,391.04
  4. Step 4: Simplify right side
    2,335.88x = 4,482,056.07
  5. Step 5: Solve for x
    x = 4,482,056.07/2,335.88
  6. Step 6: Final answer
    x = 1,918.79

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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.