Home / 1,708.20-2,557.32-1,299

Finding the Fourth Proportional to 1,708.20, 2,557.32 and 1,299

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Solution

The fourth proportional to 1,708.20, 2,557.32 and 1,299 is: 1,944.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,708.20 : 2,557.32 = 1,299 : x
  2. Step 2: Convert to fraction form
    1,708.20/2,557.32 = 1,299/x
  3. Step 3: Cross multiply
    1,708.20x = 2,557.32 × 1,299
  4. Step 4: Simplify right side
    1,708.20x = 3,321,958.68
  5. Step 5: Solve for x
    x = 3,321,958.68/1,708.20
  6. Step 6: Final answer
    x = 1,944.71

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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.