Home / 5,147.76-7,720.44-1,450.35

Finding the Fourth Proportional to 5,147.76, 7,720.44 and 1,450.35

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Solution

The fourth proportional to 5,147.76, 7,720.44 and 1,450.35 is: 2,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.76 : 7,720.44 = 1,450.35 : x
  2. Step 2: Convert to fraction form
    5,147.76/7,720.44 = 1,450.35/x
  3. Step 3: Cross multiply
    5,147.76x = 7,720.44 × 1,450.35
  4. Step 4: Simplify right side
    5,147.76x = 11,197,340.15
  5. Step 5: Solve for x
    x = 11,197,340.15/5,147.76
  6. Step 6: Final answer
    x = 2,175.19

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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.