Home / 1,734.56-2,388.66-1,209.68

Finding the Fourth Proportional to 1,734.56, 2,388.66 and 1,209.68

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Solution

The fourth proportional to 1,734.56, 2,388.66 and 1,209.68 is: 1,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,734.56 : 2,388.66 = 1,209.68 : x
  2. Step 2: Convert to fraction form
    1,734.56/2,388.66 = 1,209.68/x
  3. Step 3: Cross multiply
    1,734.56x = 2,388.66 × 1,209.68
  4. Step 4: Simplify right side
    1,734.56x = 2,889,514.23
  5. Step 5: Solve for x
    x = 2,889,514.23/1,734.56
  6. Step 6: Final answer
    x = 1,665.85

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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.