Home / 1,913.09-2,865.94-1,411.88

Finding the Fourth Proportional to 1,913.09, 2,865.94 and 1,411.88

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Solution

The fourth proportional to 1,913.09, 2,865.94 and 1,411.88 is: 2,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.09 : 2,865.94 = 1,411.88 : x
  2. Step 2: Convert to fraction form
    1,913.09/2,865.94 = 1,411.88/x
  3. Step 3: Cross multiply
    1,913.09x = 2,865.94 × 1,411.88
  4. Step 4: Simplify right side
    1,913.09x = 4,046,363.37
  5. Step 5: Solve for x
    x = 4,046,363.37/1,913.09
  6. Step 6: Final answer
    x = 2,115.09

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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.