Home / 1,679.43-2,519.34-1,332.75

Finding the Fourth Proportional to 1,679.43, 2,519.34 and 1,332.75

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Solution

The fourth proportional to 1,679.43, 2,519.34 and 1,332.75 is: 1,999.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.43 : 2,519.34 = 1,332.75 : x
  2. Step 2: Convert to fraction form
    1,679.43/2,519.34 = 1,332.75/x
  3. Step 3: Cross multiply
    1,679.43x = 2,519.34 × 1,332.75
  4. Step 4: Simplify right side
    1,679.43x = 3,357,650.39
  5. Step 5: Solve for x
    x = 3,357,650.39/1,679.43
  6. Step 6: Final answer
    x = 1,999.28

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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.