Home / 4,811.81-7,220.00-2,620.49

Finding the Fourth Proportional to 4,811.81, 7,220.00 and 2,620.49

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Solution

The fourth proportional to 4,811.81, 7,220.00 and 2,620.49 is: 3,931.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.81 : 7,220.00 = 2,620.49 : x
  2. Step 2: Convert to fraction form
    4,811.81/7,220.00 = 2,620.49/x
  3. Step 3: Cross multiply
    4,811.81x = 7,220.00 × 2,620.49
  4. Step 4: Simplify right side
    4,811.81x = 18,919,908.25
  5. Step 5: Solve for x
    x = 18,919,908.25/4,811.81
  6. Step 6: Final answer
    x = 3,931.98

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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.