Home / 5,619.57-8,426.92-1,921.11

Finding the Fourth Proportional to 5,619.57, 8,426.92 and 1,921.11

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Solution

The fourth proportional to 5,619.57, 8,426.92 and 1,921.11 is: 2,880.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.57 : 8,426.92 = 1,921.11 : x
  2. Step 2: Convert to fraction form
    5,619.57/8,426.92 = 1,921.11/x
  3. Step 3: Cross multiply
    5,619.57x = 8,426.92 × 1,921.11
  4. Step 4: Simplify right side
    5,619.57x = 16,189,040.28
  5. Step 5: Solve for x
    x = 16,189,040.28/5,619.57
  6. Step 6: Final answer
    x = 2,880.83

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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.