Home / 5,133.45-7,697.43-2,665.79

Finding the Fourth Proportional to 5,133.45, 7,697.43 and 2,665.79

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Solution

The fourth proportional to 5,133.45, 7,697.43 and 2,665.79 is: 3,997.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.45 : 7,697.43 = 2,665.79 : x
  2. Step 2: Convert to fraction form
    5,133.45/7,697.43 = 2,665.79/x
  3. Step 3: Cross multiply
    5,133.45x = 7,697.43 × 2,665.79
  4. Step 4: Simplify right side
    5,133.45x = 20,519,693.43
  5. Step 5: Solve for x
    x = 20,519,693.43/5,133.45
  6. Step 6: Final answer
    x = 3,997.25

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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.