Home / 3,078.25-4,619.22-1,130.65

Finding the Fourth Proportional to 3,078.25, 4,619.22 and 1,130.65

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Solution

The fourth proportional to 3,078.25, 4,619.22 and 1,130.65 is: 1,696.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.25 : 4,619.22 = 1,130.65 : x
  2. Step 2: Convert to fraction form
    3,078.25/4,619.22 = 1,130.65/x
  3. Step 3: Cross multiply
    3,078.25x = 4,619.22 × 1,130.65
  4. Step 4: Simplify right side
    3,078.25x = 5,222,721.09
  5. Step 5: Solve for x
    x = 5,222,721.09/3,078.25
  6. Step 6: Final answer
    x = 1,696.65

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1.5x scale

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.