Home / 2,670.24-3,999.84-1,571.22

Finding the Fourth Proportional to 2,670.24, 3,999.84 and 1,571.22

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Solution

The fourth proportional to 2,670.24, 3,999.84 and 1,571.22 is: 2,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.24 : 3,999.84 = 1,571.22 : x
  2. Step 2: Convert to fraction form
    2,670.24/3,999.84 = 1,571.22/x
  3. Step 3: Cross multiply
    2,670.24x = 3,999.84 × 1,571.22
  4. Step 4: Simplify right side
    2,670.24x = 6,284,628.60
  5. Step 5: Solve for x
    x = 6,284,628.60/2,670.24
  6. Step 6: Final answer
    x = 2,353.58

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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.