Home / 1,905.33-2,860.03-1,687.30

Finding the Fourth Proportional to 1,905.33, 2,860.03 and 1,687.30

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Solution

The fourth proportional to 1,905.33, 2,860.03 and 1,687.30 is: 2,532.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.33 : 2,860.03 = 1,687.30 : x
  2. Step 2: Convert to fraction form
    1,905.33/2,860.03 = 1,687.30/x
  3. Step 3: Cross multiply
    1,905.33x = 2,860.03 × 1,687.30
  4. Step 4: Simplify right side
    1,905.33x = 4,825,734.30
  5. Step 5: Solve for x
    x = 4,825,734.30/1,905.33
  6. Step 6: Final answer
    x = 2,532.76

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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.