Home / 6,215.20-9,322.80-4,805.80

Finding the Fourth Proportional to 6,215.20, 9,322.80 and 4,805.80

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Solution

The fourth proportional to 6,215.20, 9,322.80 and 4,805.80 is: 7,208.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.20 : 9,322.80 = 4,805.80 : x
  2. Step 2: Convert to fraction form
    6,215.20/9,322.80 = 4,805.80/x
  3. Step 3: Cross multiply
    6,215.20x = 9,322.80 × 4,805.80
  4. Step 4: Simplify right side
    6,215.20x = 44,803,512.24
  5. Step 5: Solve for x
    x = 44,803,512.24/6,215.20
  6. Step 6: Final answer
    x = 7,208.70

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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.