Home / 7,050.41-9,729.88-3,906.60

Finding the Fourth Proportional to 7,050.41, 9,729.88 and 3,906.60

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Solution

The fourth proportional to 7,050.41, 9,729.88 and 3,906.60 is: 5,391.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.41 : 9,729.88 = 3,906.60 : x
  2. Step 2: Convert to fraction form
    7,050.41/9,729.88 = 3,906.60/x
  3. Step 3: Cross multiply
    7,050.41x = 9,729.88 × 3,906.60
  4. Step 4: Simplify right side
    7,050.41x = 38,010,749.21
  5. Step 5: Solve for x
    x = 38,010,749.21/7,050.41
  6. Step 6: Final answer
    x = 5,391.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.