Home / 5,055.21-7,578.03-1,766.18

Finding the Fourth Proportional to 5,055.21, 7,578.03 and 1,766.18

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Solution

The fourth proportional to 5,055.21, 7,578.03 and 1,766.18 is: 2,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,055.21 : 7,578.03 = 1,766.18 : x
  2. Step 2: Convert to fraction form
    5,055.21/7,578.03 = 1,766.18/x
  3. Step 3: Cross multiply
    5,055.21x = 7,578.03 × 1,766.18
  4. Step 4: Simplify right side
    5,055.21x = 13,384,127.14
  5. Step 5: Solve for x
    x = 13,384,127.14/5,055.21
  6. Step 6: Final answer
    x = 2,647.59

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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.