Home / 5,155.75-7,735.31-1,646.33

Finding the Fourth Proportional to 5,155.75, 7,735.31 and 1,646.33

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Solution

The fourth proportional to 5,155.75, 7,735.31 and 1,646.33 is: 2,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.75 : 7,735.31 = 1,646.33 : x
  2. Step 2: Convert to fraction form
    5,155.75/7,735.31 = 1,646.33/x
  3. Step 3: Cross multiply
    5,155.75x = 7,735.31 × 1,646.33
  4. Step 4: Simplify right side
    5,155.75x = 12,734,864.68
  5. Step 5: Solve for x
    x = 12,734,864.68/5,155.75
  6. Step 6: Final answer
    x = 2,470.03

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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.