Home / 1,929.05-2,876.63-1,911.50

Finding the Fourth Proportional to 1,929.05, 2,876.63 and 1,911.50

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Solution

The fourth proportional to 1,929.05, 2,876.63 and 1,911.50 is: 2,850.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.05 : 2,876.63 = 1,911.50 : x
  2. Step 2: Convert to fraction form
    1,929.05/2,876.63 = 1,911.50/x
  3. Step 3: Cross multiply
    1,929.05x = 2,876.63 × 1,911.50
  4. Step 4: Simplify right side
    1,929.05x = 5,498,668.69
  5. Step 5: Solve for x
    x = 5,498,668.69/1,929.05
  6. Step 6: Final answer
    x = 2,850.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.