Home / 6,987.68-10,480.32-2,057.28

Finding the Fourth Proportional to 6,987.68, 10,480.32 and 2,057.28

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Solution

The fourth proportional to 6,987.68, 10,480.32 and 2,057.28 is: 3,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,987.68 : 10,480.32 = 2,057.28 : x
  2. Step 2: Convert to fraction form
    6,987.68/10,480.32 = 2,057.28/x
  3. Step 3: Cross multiply
    6,987.68x = 10,480.32 × 2,057.28
  4. Step 4: Simplify right side
    6,987.68x = 21,560,952.73
  5. Step 5: Solve for x
    x = 21,560,952.73/6,987.68
  6. Step 6: Final answer
    x = 3,085.57

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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.