Home / 7,857.17-11,783.25-2,591.20

Finding the Fourth Proportional to 7,857.17, 11,783.25 and 2,591.20

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Solution

The fourth proportional to 7,857.17, 11,783.25 and 2,591.20 is: 3,885.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.17 : 11,783.25 = 2,591.20 : x
  2. Step 2: Convert to fraction form
    7,857.17/11,783.25 = 2,591.20/x
  3. Step 3: Cross multiply
    7,857.17x = 11,783.25 × 2,591.20
  4. Step 4: Simplify right side
    7,857.17x = 30,532,685.53
  5. Step 5: Solve for x
    x = 30,532,685.53/7,857.17
  6. Step 6: Final answer
    x = 3,885.97

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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.