Home / 5,157.37-7,735.31-1,647.77

Finding the Fourth Proportional to 5,157.37, 7,735.31 and 1,647.77

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Solution

The fourth proportional to 5,157.37, 7,735.31 and 1,647.77 is: 2,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.37 : 7,735.31 = 1,647.77 : x
  2. Step 2: Convert to fraction form
    5,157.37/7,735.31 = 1,647.77/x
  3. Step 3: Cross multiply
    5,157.37x = 7,735.31 × 1,647.77
  4. Step 4: Simplify right side
    5,157.37x = 12,746,003.52
  5. Step 5: Solve for x
    x = 12,746,003.52/5,157.37
  6. Step 6: Final answer
    x = 2,471.42

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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.