Home / 5,190.36-7,162.72-2,832.55

Finding the Fourth Proportional to 5,190.36, 7,162.72 and 2,832.55

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Solution

The fourth proportional to 5,190.36, 7,162.72 and 2,832.55 is: 3,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.36 : 7,162.72 = 2,832.55 : x
  2. Step 2: Convert to fraction form
    5,190.36/7,162.72 = 2,832.55/x
  3. Step 3: Cross multiply
    5,190.36x = 7,162.72 × 2,832.55
  4. Step 4: Simplify right side
    5,190.36x = 20,288,762.54
  5. Step 5: Solve for x
    x = 20,288,762.54/5,190.36
  6. Step 6: Final answer
    x = 3,908.93

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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.