Home / 5,477.05-8,211.73-1,918.30

Finding the Fourth Proportional to 5,477.05, 8,211.73 and 1,918.30

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Solution

The fourth proportional to 5,477.05, 8,211.73 and 1,918.30 is: 2,876.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.05 : 8,211.73 = 1,918.30 : x
  2. Step 2: Convert to fraction form
    5,477.05/8,211.73 = 1,918.30/x
  3. Step 3: Cross multiply
    5,477.05x = 8,211.73 × 1,918.30
  4. Step 4: Simplify right side
    5,477.05x = 15,752,555.33
  5. Step 5: Solve for x
    x = 15,752,555.33/5,477.05
  6. Step 6: Final answer
    x = 2,876.10

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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.