Home / 6,215.80-8,578.30-3,563.86

Finding the Fourth Proportional to 6,215.80, 8,578.30 and 3,563.86

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Solution

The fourth proportional to 6,215.80, 8,578.30 and 3,563.86 is: 4,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.80 : 8,578.30 = 3,563.86 : x
  2. Step 2: Convert to fraction form
    6,215.80/8,578.30 = 3,563.86/x
  3. Step 3: Cross multiply
    6,215.80x = 8,578.30 × 3,563.86
  4. Step 4: Simplify right side
    6,215.80x = 30,571,860.24
  5. Step 5: Solve for x
    x = 30,571,860.24/6,215.80
  6. Step 6: Final answer
    x = 4,918.41

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1.5x scale

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.