Home / 6,984.88-10,471.56-2,878

Finding the Fourth Proportional to 6,984.88, 10,471.56 and 2,878

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Solution

The fourth proportional to 6,984.88, 10,471.56 and 2,878 is: 4,314.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.88 : 10,471.56 = 2,878 : x
  2. Step 2: Convert to fraction form
    6,984.88/10,471.56 = 2,878/x
  3. Step 3: Cross multiply
    6,984.88x = 10,471.56 × 2,878
  4. Step 4: Simplify right side
    6,984.88x = 30,137,149.68
  5. Step 5: Solve for x
    x = 30,137,149.68/6,984.88
  6. Step 6: Final answer
    x = 4,314.63

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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.