Home / 6,986.80-10,480.20-2,603.35

Finding the Fourth Proportional to 6,986.80, 10,480.20 and 2,603.35

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Solution

The fourth proportional to 6,986.80, 10,480.20 and 2,603.35 is: 3,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.80 : 10,480.20 = 2,603.35 : x
  2. Step 2: Convert to fraction form
    6,986.80/10,480.20 = 2,603.35/x
  3. Step 3: Cross multiply
    6,986.80x = 10,480.20 × 2,603.35
  4. Step 4: Simplify right side
    6,986.80x = 27,283,628.67
  5. Step 5: Solve for x
    x = 27,283,628.67/6,986.80
  6. Step 6: Final answer
    x = 3,905.03

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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.