Home / 1,427.55-2,141.34-605.31

Finding the Fourth Proportional to 1,427.55, 2,141.34 and 605.31

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Solution

The fourth proportional to 1,427.55, 2,141.34 and 605.31 is: 907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.55 : 2,141.34 = 605.31 : x
  2. Step 2: Convert to fraction form
    1,427.55/2,141.34 = 605.31/x
  3. Step 3: Cross multiply
    1,427.55x = 2,141.34 × 605.31
  4. Step 4: Simplify right side
    1,427.55x = 1,296,174.52
  5. Step 5: Solve for x
    x = 1,296,174.52/1,427.55
  6. Step 6: Final answer
    x = 907.97

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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.