Home / 7,831.05-11,748.43-2,636.93

Finding the Fourth Proportional to 7,831.05, 11,748.43 and 2,636.93

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Solution

The fourth proportional to 7,831.05, 11,748.43 and 2,636.93 is: 3,956.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.05 : 11,748.43 = 2,636.93 : x
  2. Step 2: Convert to fraction form
    7,831.05/11,748.43 = 2,636.93/x
  3. Step 3: Cross multiply
    7,831.05x = 11,748.43 × 2,636.93
  4. Step 4: Simplify right side
    7,831.05x = 30,979,783.44
  5. Step 5: Solve for x
    x = 30,979,783.44/7,831.05
  6. Step 6: Final answer
    x = 3,956.02

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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.