Home / 2,612.96-3,605.79-1,433.96

Finding the Fourth Proportional to 2,612.96, 3,605.79 and 1,433.96

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Solution

The fourth proportional to 2,612.96, 3,605.79 and 1,433.96 is: 1,978.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.96 : 3,605.79 = 1,433.96 : x
  2. Step 2: Convert to fraction form
    2,612.96/3,605.79 = 1,433.96/x
  3. Step 3: Cross multiply
    2,612.96x = 3,605.79 × 1,433.96
  4. Step 4: Simplify right side
    2,612.96x = 5,170,558.63
  5. Step 5: Solve for x
    x = 5,170,558.63/2,612.96
  6. Step 6: Final answer
    x = 1,978.81

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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.