Home / 1,928.12-2,875.25-1,910.58

Finding the Fourth Proportional to 1,928.12, 2,875.25 and 1,910.58

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Solution

The fourth proportional to 1,928.12, 2,875.25 and 1,910.58 is: 2,849.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.12 : 2,875.25 = 1,910.58 : x
  2. Step 2: Convert to fraction form
    1,928.12/2,875.25 = 1,910.58/x
  3. Step 3: Cross multiply
    1,928.12x = 2,875.25 × 1,910.58
  4. Step 4: Simplify right side
    1,928.12x = 5,493,394.54
  5. Step 5: Solve for x
    x = 5,493,394.54/1,928.12
  6. Step 6: Final answer
    x = 2,849.09

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.