Home / 1,899.34-2,843.90-1,239.58

Finding the Fourth Proportional to 1,899.34, 2,843.90 and 1,239.58

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Solution

The fourth proportional to 1,899.34, 2,843.90 and 1,239.58 is: 1,856.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.34 : 2,843.90 = 1,239.58 : x
  2. Step 2: Convert to fraction form
    1,899.34/2,843.90 = 1,239.58/x
  3. Step 3: Cross multiply
    1,899.34x = 2,843.90 × 1,239.58
  4. Step 4: Simplify right side
    1,899.34x = 3,525,250.54
  5. Step 5: Solve for x
    x = 3,525,250.54/1,899.34
  6. Step 6: Final answer
    x = 1,856.04

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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.