Home / 7,066.40-10,600.80-3,778.60

Finding the Fourth Proportional to 7,066.40, 10,600.80 and 3,778.60

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Solution

The fourth proportional to 7,066.40, 10,600.80 and 3,778.60 is: 5,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.40 : 10,600.80 = 3,778.60 : x
  2. Step 2: Convert to fraction form
    7,066.40/10,600.80 = 3,778.60/x
  3. Step 3: Cross multiply
    7,066.40x = 10,600.80 × 3,778.60
  4. Step 4: Simplify right side
    7,066.40x = 40,056,182.88
  5. Step 5: Solve for x
    x = 40,056,182.88/7,066.40
  6. Step 6: Final answer
    x = 5,668.54

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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.