Home / 1,919.84-2,860.11-1,826.96

Finding the Fourth Proportional to 1,919.84, 2,860.11 and 1,826.96

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Solution

The fourth proportional to 1,919.84, 2,860.11 and 1,826.96 is: 2,721.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.84 : 2,860.11 = 1,826.96 : x
  2. Step 2: Convert to fraction form
    1,919.84/2,860.11 = 1,826.96/x
  3. Step 3: Cross multiply
    1,919.84x = 2,860.11 × 1,826.96
  4. Step 4: Simplify right side
    1,919.84x = 5,225,292.27
  5. Step 5: Solve for x
    x = 5,225,292.27/1,919.84
  6. Step 6: Final answer
    x = 2,721.74

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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.