Home / 2,863.30-3,953.64-1,907.14

Finding the Fourth Proportional to 2,863.30, 3,953.64 and 1,907.14

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Solution

The fourth proportional to 2,863.30, 3,953.64 and 1,907.14 is: 2,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,863.30 : 3,953.64 = 1,907.14 : x
  2. Step 2: Convert to fraction form
    2,863.30/3,953.64 = 1,907.14/x
  3. Step 3: Cross multiply
    2,863.30x = 3,953.64 × 1,907.14
  4. Step 4: Simplify right side
    2,863.30x = 7,540,150.11
  5. Step 5: Solve for x
    x = 7,540,150.11/2,863.30
  6. Step 6: Final answer
    x = 2,633.38

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Half scale
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Double scale
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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.