Home / 1,282.05-1,920.51-1,037.97

Finding the Fourth Proportional to 1,282.05, 1,920.51 and 1,037.97

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Solution

The fourth proportional to 1,282.05, 1,920.51 and 1,037.97 is: 1,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282.05 : 1,920.51 = 1,037.97 : x
  2. Step 2: Convert to fraction form
    1,282.05/1,920.51 = 1,037.97/x
  3. Step 3: Cross multiply
    1,282.05x = 1,920.51 × 1,037.97
  4. Step 4: Simplify right side
    1,282.05x = 1,993,431.76
  5. Step 5: Solve for x
    x = 1,993,431.76/1,282.05
  6. Step 6: Final answer
    x = 1,554.88

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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.