Home / 7,778.16-11,664.48-2,512.96

Finding the Fourth Proportional to 7,778.16, 11,664.48 and 2,512.96

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Solution

The fourth proportional to 7,778.16, 11,664.48 and 2,512.96 is: 3,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778.16 : 11,664.48 = 2,512.96 : x
  2. Step 2: Convert to fraction form
    7,778.16/11,664.48 = 2,512.96/x
  3. Step 3: Cross multiply
    7,778.16x = 11,664.48 × 2,512.96
  4. Step 4: Simplify right side
    7,778.16x = 29,312,371.66
  5. Step 5: Solve for x
    x = 29,312,371.66/7,778.16
  6. Step 6: Final answer
    x = 3,768.55

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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.