Home / 7,135.31-10,707.19-3,975.39

Finding the Fourth Proportional to 7,135.31, 10,707.19 and 3,975.39

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Solution

The fourth proportional to 7,135.31, 10,707.19 and 3,975.39 is: 5,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.31 : 10,707.19 = 3,975.39 : x
  2. Step 2: Convert to fraction form
    7,135.31/10,707.19 = 3,975.39/x
  3. Step 3: Cross multiply
    7,135.31x = 10,707.19 × 3,975.39
  4. Step 4: Simplify right side
    7,135.31x = 42,565,290.69
  5. Step 5: Solve for x
    x = 42,565,290.69/7,135.31
  6. Step 6: Final answer
    x = 5,965.44

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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.