Home / 1,919.84-2,882.32-1,141.28

Finding the Fourth Proportional to 1,919.84, 2,882.32 and 1,141.28

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Solution

The fourth proportional to 1,919.84, 2,882.32 and 1,141.28 is: 1,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.84 : 2,882.32 = 1,141.28 : x
  2. Step 2: Convert to fraction form
    1,919.84/2,882.32 = 1,141.28/x
  3. Step 3: Cross multiply
    1,919.84x = 2,882.32 × 1,141.28
  4. Step 4: Simplify right side
    1,919.84x = 3,289,534.17
  5. Step 5: Solve for x
    x = 3,289,534.17/1,919.84
  6. Step 6: Final answer
    x = 1,713.44

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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.