Home / 2,104.70-2,904.52-1,208.58

Finding the Fourth Proportional to 2,104.70, 2,904.52 and 1,208.58

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Solution

The fourth proportional to 2,104.70, 2,904.52 and 1,208.58 is: 1,667.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,104.70 : 2,904.52 = 1,208.58 : x
  2. Step 2: Convert to fraction form
    2,104.70/2,904.52 = 1,208.58/x
  3. Step 3: Cross multiply
    2,104.70x = 2,904.52 × 1,208.58
  4. Step 4: Simplify right side
    2,104.70x = 3,510,355.26
  5. Step 5: Solve for x
    x = 3,510,355.26/2,104.70
  6. Step 6: Final answer
    x = 1,667.87

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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.