Home / 2,035.44-2,809.31-1,288.89

Finding the Fourth Proportional to 2,035.44, 2,809.31 and 1,288.89

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Solution

The fourth proportional to 2,035.44, 2,809.31 and 1,288.89 is: 1,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,035.44 : 2,809.31 = 1,288.89 : x
  2. Step 2: Convert to fraction form
    2,035.44/2,809.31 = 1,288.89/x
  3. Step 3: Cross multiply
    2,035.44x = 2,809.31 × 1,288.89
  4. Step 4: Simplify right side
    2,035.44x = 3,620,885.12
  5. Step 5: Solve for x
    x = 3,620,885.12/2,035.44
  6. Step 6: Final answer
    x = 1,778.92

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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.