Home / 5,190.12-7,162.38-3,094.20

Finding the Fourth Proportional to 5,190.12, 7,162.38 and 3,094.20

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Solution

The fourth proportional to 5,190.12, 7,162.38 and 3,094.20 is: 4,270.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.12 : 7,162.38 = 3,094.20 : x
  2. Step 2: Convert to fraction form
    5,190.12/7,162.38 = 3,094.20/x
  3. Step 3: Cross multiply
    5,190.12x = 7,162.38 × 3,094.20
  4. Step 4: Simplify right side
    5,190.12x = 22,161,836.20
  5. Step 5: Solve for x
    x = 22,161,836.20/5,190.12
  6. Step 6: Final answer
    x = 4,270.00

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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.