Home / 5,189.18-7,784.46-1,856.44

Finding the Fourth Proportional to 5,189.18, 7,784.46 and 1,856.44

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Solution

The fourth proportional to 5,189.18, 7,784.46 and 1,856.44 is: 2,784.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.18 : 7,784.46 = 1,856.44 : x
  2. Step 2: Convert to fraction form
    5,189.18/7,784.46 = 1,856.44/x
  3. Step 3: Cross multiply
    5,189.18x = 7,784.46 × 1,856.44
  4. Step 4: Simplify right side
    5,189.18x = 14,451,382.92
  5. Step 5: Solve for x
    x = 14,451,382.92/5,189.18
  6. Step 6: Final answer
    x = 2,784.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.