Home / 5,440.79-8,162.03-2,320.81

Finding the Fourth Proportional to 5,440.79, 8,162.03 and 2,320.81

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Solution

The fourth proportional to 5,440.79, 8,162.03 and 2,320.81 is: 3,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.79 : 8,162.03 = 2,320.81 : x
  2. Step 2: Convert to fraction form
    5,440.79/8,162.03 = 2,320.81/x
  3. Step 3: Cross multiply
    5,440.79x = 8,162.03 × 2,320.81
  4. Step 4: Simplify right side
    5,440.79x = 18,942,506.24
  5. Step 5: Solve for x
    x = 18,942,506.24/5,440.79
  6. Step 6: Final answer
    x = 3,481.57

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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.