Home / 2,928.78-4,394.79-1,370.07

Finding the Fourth Proportional to 2,928.78, 4,394.79 and 1,370.07

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Solution

The fourth proportional to 2,928.78, 4,394.79 and 1,370.07 is: 2,055.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.78 : 4,394.79 = 1,370.07 : x
  2. Step 2: Convert to fraction form
    2,928.78/4,394.79 = 1,370.07/x
  3. Step 3: Cross multiply
    2,928.78x = 4,394.79 × 1,370.07
  4. Step 4: Simplify right side
    2,928.78x = 6,021,169.94
  5. Step 5: Solve for x
    x = 6,021,169.94/2,928.78
  6. Step 6: Final answer
    x = 2,055.86

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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.