Home / 1,914.76-2,872.05-528.09

Finding the Fourth Proportional to 1,914.76, 2,872.05 and 528.09

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Solution

The fourth proportional to 1,914.76, 2,872.05 and 528.09 is: 792.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914.76 : 2,872.05 = 528.09 : x
  2. Step 2: Convert to fraction form
    1,914.76/2,872.05 = 528.09/x
  3. Step 3: Cross multiply
    1,914.76x = 2,872.05 × 528.09
  4. Step 4: Simplify right side
    1,914.76x = 1,516,700.88
  5. Step 5: Solve for x
    x = 1,516,700.88/1,914.76
  6. Step 6: Final answer
    x = 792.11

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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.