Home / 4,811.92-7,216.62-2,178.40

Finding the Fourth Proportional to 4,811.92, 7,216.62 and 2,178.40

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Solution

The fourth proportional to 4,811.92, 7,216.62 and 2,178.40 is: 3,267.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.92 : 7,216.62 = 2,178.40 : x
  2. Step 2: Convert to fraction form
    4,811.92/7,216.62 = 2,178.40/x
  3. Step 3: Cross multiply
    4,811.92x = 7,216.62 × 2,178.40
  4. Step 4: Simplify right side
    4,811.92x = 15,720,685.01
  5. Step 5: Solve for x
    x = 15,720,685.01/4,811.92
  6. Step 6: Final answer
    x = 3,267.03

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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.