Home / 3,571.84-4,929.15-1,999.93

Finding the Fourth Proportional to 3,571.84, 4,929.15 and 1,999.93

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Solution

The fourth proportional to 3,571.84, 4,929.15 and 1,999.93 is: 2,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.84 : 4,929.15 = 1,999.93 : x
  2. Step 2: Convert to fraction form
    3,571.84/4,929.15 = 1,999.93/x
  3. Step 3: Cross multiply
    3,571.84x = 4,929.15 × 1,999.93
  4. Step 4: Simplify right side
    3,571.84x = 9,857,954.96
  5. Step 5: Solve for x
    x = 9,857,954.96/3,571.84
  6. Step 6: Final answer
    x = 2,759.91

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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.