Home / 5,137.22-7,707.56-1,627.80

Finding the Fourth Proportional to 5,137.22, 7,707.56 and 1,627.80

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Solution

The fourth proportional to 5,137.22, 7,707.56 and 1,627.80 is: 2,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.22 : 7,707.56 = 1,627.80 : x
  2. Step 2: Convert to fraction form
    5,137.22/7,707.56 = 1,627.80/x
  3. Step 3: Cross multiply
    5,137.22x = 7,707.56 × 1,627.80
  4. Step 4: Simplify right side
    5,137.22x = 12,546,329.13
  5. Step 5: Solve for x
    x = 12,546,329.13/5,137.22
  6. Step 6: Final answer
    x = 2,442.24

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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.