Home / 1,919.06-2,882.43-1,856.01

Finding the Fourth Proportional to 1,919.06, 2,882.43 and 1,856.01

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Solution

The fourth proportional to 1,919.06, 2,882.43 and 1,856.01 is: 2,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.06 : 2,882.43 = 1,856.01 : x
  2. Step 2: Convert to fraction form
    1,919.06/2,882.43 = 1,856.01/x
  3. Step 3: Cross multiply
    1,919.06x = 2,882.43 × 1,856.01
  4. Step 4: Simplify right side
    1,919.06x = 5,349,818.90
  5. Step 5: Solve for x
    x = 5,349,818.90/1,919.06
  6. Step 6: Final answer
    x = 2,787.74

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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.