Home / 1,891.03-2,834.45-1,427.31

Finding the Fourth Proportional to 1,891.03, 2,834.45 and 1,427.31

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Solution

The fourth proportional to 1,891.03, 2,834.45 and 1,427.31 is: 2,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891.03 : 2,834.45 = 1,427.31 : x
  2. Step 2: Convert to fraction form
    1,891.03/2,834.45 = 1,427.31/x
  3. Step 3: Cross multiply
    1,891.03x = 2,834.45 × 1,427.31
  4. Step 4: Simplify right side
    1,891.03x = 4,045,617.52
  5. Step 5: Solve for x
    x = 4,045,617.52/1,891.03
  6. Step 6: Final answer
    x = 2,139.37

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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.