Home / 5,190.08-7,162.34-2,832.16

Finding the Fourth Proportional to 5,190.08, 7,162.34 and 2,832.16

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Solution

The fourth proportional to 5,190.08, 7,162.34 and 2,832.16 is: 3,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.08 : 7,162.34 = 2,832.16 : x
  2. Step 2: Convert to fraction form
    5,190.08/7,162.34 = 2,832.16/x
  3. Step 3: Cross multiply
    5,190.08x = 7,162.34 × 2,832.16
  4. Step 4: Simplify right side
    5,190.08x = 20,284,892.85
  5. Step 5: Solve for x
    x = 20,284,892.85/5,190.08
  6. Step 6: Final answer
    x = 3,908.40

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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.