Home / 1,891.05-2,836.57-504.31

Finding the Fourth Proportional to 1,891.05, 2,836.57 and 504.31

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Solution

The fourth proportional to 1,891.05, 2,836.57 and 504.31 is: 756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.05 : 2,836.57 = 504.31 : x
  2. Step 2: Convert to fraction form
    1,891.05/2,836.57 = 504.31/x
  3. Step 3: Cross multiply
    1,891.05x = 2,836.57 × 504.31
  4. Step 4: Simplify right side
    1,891.05x = 1,430,510.62
  5. Step 5: Solve for x
    x = 1,430,510.62/1,891.05
  6. Step 6: Final answer
    x = 756.47

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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.