Home / 2,004.21-2,765.80-1,120

Finding the Fourth Proportional to 2,004.21, 2,765.80 and 1,120

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Solution

The fourth proportional to 2,004.21, 2,765.80 and 1,120 is: 1,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.21 : 2,765.80 = 1,120 : x
  2. Step 2: Convert to fraction form
    2,004.21/2,765.80 = 1,120/x
  3. Step 3: Cross multiply
    2,004.21x = 2,765.80 × 1,120
  4. Step 4: Simplify right side
    2,004.21x = 3,097,696
  5. Step 5: Solve for x
    x = 3,097,696/2,004.21
  6. Step 6: Final answer
    x = 1,545.59

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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.