Home / 5,412.06-8,121.74-2,124.77

Finding the Fourth Proportional to 5,412.06, 8,121.74 and 2,124.77

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Solution

The fourth proportional to 5,412.06, 8,121.74 and 2,124.77 is: 3,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.06 : 8,121.74 = 2,124.77 : x
  2. Step 2: Convert to fraction form
    5,412.06/8,121.74 = 2,124.77/x
  3. Step 3: Cross multiply
    5,412.06x = 8,121.74 × 2,124.77
  4. Step 4: Simplify right side
    5,412.06x = 17,256,778.27
  5. Step 5: Solve for x
    x = 17,256,778.27/5,412.06
  6. Step 6: Final answer
    x = 3,188.58

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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.