Home / 5,129.07-7,074.09-3,712.97

Finding the Fourth Proportional to 5,129.07, 7,074.09 and 3,712.97

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Solution

The fourth proportional to 5,129.07, 7,074.09 and 3,712.97 is: 5,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.07 : 7,074.09 = 3,712.97 : x
  2. Step 2: Convert to fraction form
    5,129.07/7,074.09 = 3,712.97/x
  3. Step 3: Cross multiply
    5,129.07x = 7,074.09 × 3,712.97
  4. Step 4: Simplify right side
    5,129.07x = 26,265,848.58
  5. Step 5: Solve for x
    x = 26,265,848.58/5,129.07
  6. Step 6: Final answer
    x = 5,120.98

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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.