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Finding the Fourth Proportional to 6,939.03, 9,575.62 and 3,955.82

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Solution

The fourth proportional to 6,939.03, 9,575.62 and 3,955.82 is: 5,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.03 : 9,575.62 = 3,955.82 : x
  2. Step 2: Convert to fraction form
    6,939.03/9,575.62 = 3,955.82/x
  3. Step 3: Cross multiply
    6,939.03x = 9,575.62 × 3,955.82
  4. Step 4: Simplify right side
    6,939.03x = 37,879,431.19
  5. Step 5: Solve for x
    x = 37,879,431.19/6,939.03
  6. Step 6: Final answer
    x = 5,458.90

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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.