Home / 6,669.21-9,999.60-3,160.22

Finding the Fourth Proportional to 6,669.21, 9,999.60 and 3,160.22

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Solution

The fourth proportional to 6,669.21, 9,999.60 and 3,160.22 is: 4,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.21 : 9,999.60 = 3,160.22 : x
  2. Step 2: Convert to fraction form
    6,669.21/9,999.60 = 3,160.22/x
  3. Step 3: Cross multiply
    6,669.21x = 9,999.60 × 3,160.22
  4. Step 4: Simplify right side
    6,669.21x = 31,600,891.84
  5. Step 5: Solve for x
    x = 31,600,891.84/6,669.21
  6. Step 6: Final answer
    x = 4,738.33

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1.5x scale

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.