Home / 1,852.56-2,777.48-1,121.96

Finding the Fourth Proportional to 1,852.56, 2,777.48 and 1,121.96

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Solution

The fourth proportional to 1,852.56, 2,777.48 and 1,121.96 is: 1,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.56 : 2,777.48 = 1,121.96 : x
  2. Step 2: Convert to fraction form
    1,852.56/2,777.48 = 1,121.96/x
  3. Step 3: Cross multiply
    1,852.56x = 2,777.48 × 1,121.96
  4. Step 4: Simplify right side
    1,852.56x = 3,116,221.46
  5. Step 5: Solve for x
    x = 3,116,221.46/1,852.56
  6. Step 6: Final answer
    x = 1,682.12

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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.