Home / 5,425.31-7,481.80-3,538.35

Finding the Fourth Proportional to 5,425.31, 7,481.80 and 3,538.35

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Solution

The fourth proportional to 5,425.31, 7,481.80 and 3,538.35 is: 4,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.31 : 7,481.80 = 3,538.35 : x
  2. Step 2: Convert to fraction form
    5,425.31/7,481.80 = 3,538.35/x
  3. Step 3: Cross multiply
    5,425.31x = 7,481.80 × 3,538.35
  4. Step 4: Simplify right side
    5,425.31x = 26,473,231.45
  5. Step 5: Solve for x
    x = 26,473,231.45/5,425.31
  6. Step 6: Final answer
    x = 4,879.58

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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.