Home / 3,098.75-4,277.10-1,919.16

Finding the Fourth Proportional to 3,098.75, 4,277.10 and 1,919.16

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Solution

The fourth proportional to 3,098.75, 4,277.10 and 1,919.16 is: 2,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.75 : 4,277.10 = 1,919.16 : x
  2. Step 2: Convert to fraction form
    3,098.75/4,277.10 = 1,919.16/x
  3. Step 3: Cross multiply
    3,098.75x = 4,277.10 × 1,919.16
  4. Step 4: Simplify right side
    3,098.75x = 8,208,439.24
  5. Step 5: Solve for x
    x = 8,208,439.24/3,098.75
  6. Step 6: Final answer
    x = 2,648.96

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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.