Home / 1,919.14-2,856.90-1,829.68

Finding the Fourth Proportional to 1,919.14, 2,856.90 and 1,829.68

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Solution

The fourth proportional to 1,919.14, 2,856.90 and 1,829.68 is: 2,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.14 : 2,856.90 = 1,829.68 : x
  2. Step 2: Convert to fraction form
    1,919.14/2,856.90 = 1,829.68/x
  3. Step 3: Cross multiply
    1,919.14x = 2,856.90 × 1,829.68
  4. Step 4: Simplify right side
    1,919.14x = 5,227,212.79
  5. Step 5: Solve for x
    x = 5,227,212.79/1,919.14
  6. Step 6: Final answer
    x = 2,723.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.