Home / 1,077.90-1,487.37-605.73

Finding the Fourth Proportional to 1,077.90, 1,487.37 and 605.73

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Solution

The fourth proportional to 1,077.90, 1,487.37 and 605.73 is: 835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077.90 : 1,487.37 = 605.73 : x
  2. Step 2: Convert to fraction form
    1,077.90/1,487.37 = 605.73/x
  3. Step 3: Cross multiply
    1,077.90x = 1,487.37 × 605.73
  4. Step 4: Simplify right side
    1,077.90x = 900,944.63
  5. Step 5: Solve for x
    x = 900,944.63/1,077.90
  6. Step 6: Final answer
    x = 835.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.