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Finding the Fourth Proportional to 2,169.19, 3,254.30 and 708.34

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Solution

The fourth proportional to 2,169.19, 3,254.30 and 708.34 is: 1,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.19 : 3,254.30 = 708.34 : x
  2. Step 2: Convert to fraction form
    2,169.19/3,254.30 = 708.34/x
  3. Step 3: Cross multiply
    2,169.19x = 3,254.30 × 708.34
  4. Step 4: Simplify right side
    2,169.19x = 2,305,150.86
  5. Step 5: Solve for x
    x = 2,305,150.86/2,169.19
  6. Step 6: Final answer
    x = 1,062.68

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1.5x scale

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.