Home / 1,911.51-2,865.72-1,757.75

Finding the Fourth Proportional to 1,911.51, 2,865.72 and 1,757.75

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Solution

The fourth proportional to 1,911.51, 2,865.72 and 1,757.75 is: 2,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911.51 : 2,865.72 = 1,757.75 : x
  2. Step 2: Convert to fraction form
    1,911.51/2,865.72 = 1,757.75/x
  3. Step 3: Cross multiply
    1,911.51x = 2,865.72 × 1,757.75
  4. Step 4: Simplify right side
    1,911.51x = 5,037,205.00
  5. Step 5: Solve for x
    x = 5,037,205.00/1,911.51
  6. Step 6: Final answer
    x = 2,635.20

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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.