Home / 3,119.06-4,678.58-1,269.74

Finding the Fourth Proportional to 3,119.06, 4,678.58 and 1,269.74

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Solution

The fourth proportional to 3,119.06, 4,678.58 and 1,269.74 is: 1,904.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.06 : 4,678.58 = 1,269.74 : x
  2. Step 2: Convert to fraction form
    3,119.06/4,678.58 = 1,269.74/x
  3. Step 3: Cross multiply
    3,119.06x = 4,678.58 × 1,269.74
  4. Step 4: Simplify right side
    3,119.06x = 5,940,550.43
  5. Step 5: Solve for x
    x = 5,940,550.43/3,119.06
  6. Step 6: Final answer
    x = 1,904.59

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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.