Home / 6,215.85-9,315.26-3,288.32

Finding the Fourth Proportional to 6,215.85, 9,315.26 and 3,288.32

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Solution

The fourth proportional to 6,215.85, 9,315.26 and 3,288.32 is: 4,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.85 : 9,315.26 = 3,288.32 : x
  2. Step 2: Convert to fraction form
    6,215.85/9,315.26 = 3,288.32/x
  3. Step 3: Cross multiply
    6,215.85x = 9,315.26 × 3,288.32
  4. Step 4: Simplify right side
    6,215.85x = 30,631,492.75
  5. Step 5: Solve for x
    x = 30,631,492.75/6,215.85
  6. Step 6: Final answer
    x = 4,927.97

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1.5x scale

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.