Home / 1,881.22-2,820.60-1,777.96

Finding the Fourth Proportional to 1,881.22, 2,820.60 and 1,777.96

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Solution

The fourth proportional to 1,881.22, 2,820.60 and 1,777.96 is: 2,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.22 : 2,820.60 = 1,777.96 : x
  2. Step 2: Convert to fraction form
    1,881.22/2,820.60 = 1,777.96/x
  3. Step 3: Cross multiply
    1,881.22x = 2,820.60 × 1,777.96
  4. Step 4: Simplify right side
    1,881.22x = 5,014,913.98
  5. Step 5: Solve for x
    x = 5,014,913.98/1,881.22
  6. Step 6: Final answer
    x = 2,665.78

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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.