Home / 7,218.41-10,822.81-2,600.81

Finding the Fourth Proportional to 7,218.41, 10,822.81 and 2,600.81

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Solution

The fourth proportional to 7,218.41, 10,822.81 and 2,600.81 is: 3,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.41 : 10,822.81 = 2,600.81 : x
  2. Step 2: Convert to fraction form
    7,218.41/10,822.81 = 2,600.81/x
  3. Step 3: Cross multiply
    7,218.41x = 10,822.81 × 2,600.81
  4. Step 4: Simplify right side
    7,218.41x = 28,148,072.48
  5. Step 5: Solve for x
    x = 28,148,072.48/7,218.41
  6. Step 6: Final answer
    x = 3,899.48

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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.