Home / 5,190.16-7,162.36-2,832.32

Finding the Fourth Proportional to 5,190.16, 7,162.36 and 2,832.32

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Solution

The fourth proportional to 5,190.16, 7,162.36 and 2,832.32 is: 3,908.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.16 : 7,162.36 = 2,832.32 : x
  2. Step 2: Convert to fraction form
    5,190.16/7,162.36 = 2,832.32/x
  3. Step 3: Cross multiply
    5,190.16x = 7,162.36 × 2,832.32
  4. Step 4: Simplify right side
    5,190.16x = 20,286,095.48
  5. Step 5: Solve for x
    x = 20,286,095.48/5,190.16
  6. Step 6: Final answer
    x = 3,908.57

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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.