Home / 3,571.29-4,927.64-1,999.35

Finding the Fourth Proportional to 3,571.29, 4,927.64 and 1,999.35

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Solution

The fourth proportional to 3,571.29, 4,927.64 and 1,999.35 is: 2,758.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,571.29 : 4,927.64 = 1,999.35 : x
  2. Step 2: Convert to fraction form
    3,571.29/4,927.64 = 1,999.35/x
  3. Step 3: Cross multiply
    3,571.29x = 4,927.64 × 1,999.35
  4. Step 4: Simplify right side
    3,571.29x = 9,852,067.04
  5. Step 5: Solve for x
    x = 9,852,067.04/3,571.29
  6. Step 6: Final answer
    x = 2,758.69

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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.