Home / 5,120.70-7,066.98-2,967.99

Finding the Fourth Proportional to 5,120.70, 7,066.98 and 2,967.99

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Solution

The fourth proportional to 5,120.70, 7,066.98 and 2,967.99 is: 4,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.70 : 7,066.98 = 2,967.99 : x
  2. Step 2: Convert to fraction form
    5,120.70/7,066.98 = 2,967.99/x
  3. Step 3: Cross multiply
    5,120.70x = 7,066.98 × 2,967.99
  4. Step 4: Simplify right side
    5,120.70x = 20,974,725.97
  5. Step 5: Solve for x
    x = 20,974,725.97/5,120.70
  6. Step 6: Final answer
    x = 4,096.07

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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.