Home / 5,117.22-7,680.69-2,653.80

Finding the Fourth Proportional to 5,117.22, 7,680.69 and 2,653.80

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Solution

The fourth proportional to 5,117.22, 7,680.69 and 2,653.80 is: 3,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.22 : 7,680.69 = 2,653.80 : x
  2. Step 2: Convert to fraction form
    5,117.22/7,680.69 = 2,653.80/x
  3. Step 3: Cross multiply
    5,117.22x = 7,680.69 × 2,653.80
  4. Step 4: Simplify right side
    5,117.22x = 20,383,015.12
  5. Step 5: Solve for x
    x = 20,383,015.12/5,117.22
  6. Step 6: Final answer
    x = 3,983.22

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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.