Home / 3,099.33-4,277.16-1,921.05

Finding the Fourth Proportional to 3,099.33, 4,277.16 and 1,921.05

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Solution

The fourth proportional to 3,099.33, 4,277.16 and 1,921.05 is: 2,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.33 : 4,277.16 = 1,921.05 : x
  2. Step 2: Convert to fraction form
    3,099.33/4,277.16 = 1,921.05/x
  3. Step 3: Cross multiply
    3,099.33x = 4,277.16 × 1,921.05
  4. Step 4: Simplify right side
    3,099.33x = 8,216,638.22
  5. Step 5: Solve for x
    x = 8,216,638.22/3,099.33
  6. Step 6: Final answer
    x = 2,651.10

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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.