Home / 5,918.36-8,878.49-2,220.87

Finding the Fourth Proportional to 5,918.36, 8,878.49 and 2,220.87

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Solution

The fourth proportional to 5,918.36, 8,878.49 and 2,220.87 is: 3,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.36 : 8,878.49 = 2,220.87 : x
  2. Step 2: Convert to fraction form
    5,918.36/8,878.49 = 2,220.87/x
  3. Step 3: Cross multiply
    5,918.36x = 8,878.49 × 2,220.87
  4. Step 4: Simplify right side
    5,918.36x = 19,718,006.12
  5. Step 5: Solve for x
    x = 19,718,006.12/5,918.36
  6. Step 6: Final answer
    x = 3,331.67

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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.