Home / 2,609.33-3,910.35-1,918.81

Finding the Fourth Proportional to 2,609.33, 3,910.35 and 1,918.81

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Solution

The fourth proportional to 2,609.33, 3,910.35 and 1,918.81 is: 2,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.33 : 3,910.35 = 1,918.81 : x
  2. Step 2: Convert to fraction form
    2,609.33/3,910.35 = 1,918.81/x
  3. Step 3: Cross multiply
    2,609.33x = 3,910.35 × 1,918.81
  4. Step 4: Simplify right side
    2,609.33x = 7,503,199.13
  5. Step 5: Solve for x
    x = 7,503,199.13/2,609.33
  6. Step 6: Final answer
    x = 2,875.53

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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.