Home / 1,901.19-2,856.60-1,208.19

Finding the Fourth Proportional to 1,901.19, 2,856.60 and 1,208.19

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Solution

The fourth proportional to 1,901.19, 2,856.60 and 1,208.19 is: 1,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.19 : 2,856.60 = 1,208.19 : x
  2. Step 2: Convert to fraction form
    1,901.19/2,856.60 = 1,208.19/x
  3. Step 3: Cross multiply
    1,901.19x = 2,856.60 × 1,208.19
  4. Step 4: Simplify right side
    1,901.19x = 3,451,315.55
  5. Step 5: Solve for x
    x = 3,451,315.55/1,901.19
  6. Step 6: Final answer
    x = 1,815.34

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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.