Home / 7,390.44-11,090.52-3,930.12

Finding the Fourth Proportional to 7,390.44, 11,090.52 and 3,930.12

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Solution

The fourth proportional to 7,390.44, 11,090.52 and 3,930.12 is: 5,897.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.44 : 11,090.52 = 3,930.12 : x
  2. Step 2: Convert to fraction form
    7,390.44/11,090.52 = 3,930.12/x
  3. Step 3: Cross multiply
    7,390.44x = 11,090.52 × 3,930.12
  4. Step 4: Simplify right side
    7,390.44x = 43,587,074.46
  5. Step 5: Solve for x
    x = 43,587,074.46/7,390.44
  6. Step 6: Final answer
    x = 5,897.76

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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.