Home / 6,987.40-10,481.06-2,603.81

Finding the Fourth Proportional to 6,987.40, 10,481.06 and 2,603.81

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Solution

The fourth proportional to 6,987.40, 10,481.06 and 2,603.81 is: 3,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.40 : 10,481.06 = 2,603.81 : x
  2. Step 2: Convert to fraction form
    6,987.40/10,481.06 = 2,603.81/x
  3. Step 3: Cross multiply
    6,987.40x = 10,481.06 × 2,603.81
  4. Step 4: Simplify right side
    6,987.40x = 27,290,721.55
  5. Step 5: Solve for x
    x = 27,290,721.55/6,987.40
  6. Step 6: Final answer
    x = 3,905.71

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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.