Home / 2,908.60-4,356.80-2,289.38

Finding the Fourth Proportional to 2,908.60, 4,356.80 and 2,289.38

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Solution

The fourth proportional to 2,908.60, 4,356.80 and 2,289.38 is: 3,429.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,908.60 : 4,356.80 = 2,289.38 : x
  2. Step 2: Convert to fraction form
    2,908.60/4,356.80 = 2,289.38/x
  3. Step 3: Cross multiply
    2,908.60x = 4,356.80 × 2,289.38
  4. Step 4: Simplify right side
    2,908.60x = 9,974,370.78
  5. Step 5: Solve for x
    x = 9,974,370.78/2,908.60
  6. Step 6: Final answer
    x = 3,429.27

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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.