Home / 1,905.39-2,858.90-1,830.87

Finding the Fourth Proportional to 1,905.39, 2,858.90 and 1,830.87

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Solution

The fourth proportional to 1,905.39, 2,858.90 and 1,830.87 is: 2,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.39 : 2,858.90 = 1,830.87 : x
  2. Step 2: Convert to fraction form
    1,905.39/2,858.90 = 1,830.87/x
  3. Step 3: Cross multiply
    1,905.39x = 2,858.90 × 1,830.87
  4. Step 4: Simplify right side
    1,905.39x = 5,234,265.09
  5. Step 5: Solve for x
    x = 5,234,265.09/1,905.39
  6. Step 6: Final answer
    x = 2,747.08

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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.