Home / 2,955.16-4,078.23-1,696.19

Finding the Fourth Proportional to 2,955.16, 4,078.23 and 1,696.19

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Solution

The fourth proportional to 2,955.16, 4,078.23 and 1,696.19 is: 2,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.16 : 4,078.23 = 1,696.19 : x
  2. Step 2: Convert to fraction form
    2,955.16/4,078.23 = 1,696.19/x
  3. Step 3: Cross multiply
    2,955.16x = 4,078.23 × 1,696.19
  4. Step 4: Simplify right side
    2,955.16x = 6,917,452.94
  5. Step 5: Solve for x
    x = 6,917,452.94/2,955.16
  6. Step 6: Final answer
    x = 2,340.81

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Half scale
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Find fourth proportional to 2,956.16, 4,079.61 and 1,697.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.