Home / 5,173.76-7,138.56-2,935.68

Finding the Fourth Proportional to 5,173.76, 7,138.56 and 2,935.68

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Solution

The fourth proportional to 5,173.76, 7,138.56 and 2,935.68 is: 4,050.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.76 : 7,138.56 = 2,935.68 : x
  2. Step 2: Convert to fraction form
    5,173.76/7,138.56 = 2,935.68/x
  3. Step 3: Cross multiply
    5,173.76x = 7,138.56 × 2,935.68
  4. Step 4: Simplify right side
    5,173.76x = 20,956,527.82
  5. Step 5: Solve for x
    x = 20,956,527.82/5,173.76
  6. Step 6: Final answer
    x = 4,050.54

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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.