Home / 1,921.32-2,882.03-1,267.38

Finding the Fourth Proportional to 1,921.32, 2,882.03 and 1,267.38

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Solution

The fourth proportional to 1,921.32, 2,882.03 and 1,267.38 is: 1,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921.32 : 2,882.03 = 1,267.38 : x
  2. Step 2: Convert to fraction form
    1,921.32/2,882.03 = 1,267.38/x
  3. Step 3: Cross multiply
    1,921.32x = 2,882.03 × 1,267.38
  4. Step 4: Simplify right side
    1,921.32x = 3,652,620.84
  5. Step 5: Solve for x
    x = 3,652,620.84/1,921.32
  6. Step 6: Final answer
    x = 1,901.10

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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.