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Finding the Fourth Proportional to 2,767.15, 3,820.06 and 1,824.31

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Solution

The fourth proportional to 2,767.15, 3,820.06 and 1,824.31 is: 2,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.15 : 3,820.06 = 1,824.31 : x
  2. Step 2: Convert to fraction form
    2,767.15/3,820.06 = 1,824.31/x
  3. Step 3: Cross multiply
    2,767.15x = 3,820.06 × 1,824.31
  4. Step 4: Simplify right side
    2,767.15x = 6,968,959.55
  5. Step 5: Solve for x
    x = 6,968,959.55/2,767.15
  6. Step 6: Final answer
    x = 2,518.46

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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.