Home / 3,426.28-5,129.58-1,778.92

Finding the Fourth Proportional to 3,426.28, 5,129.58 and 1,778.92

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Solution

The fourth proportional to 3,426.28, 5,129.58 and 1,778.92 is: 2,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.28 : 5,129.58 = 1,778.92 : x
  2. Step 2: Convert to fraction form
    3,426.28/5,129.58 = 1,778.92/x
  3. Step 3: Cross multiply
    3,426.28x = 5,129.58 × 1,778.92
  4. Step 4: Simplify right side
    3,426.28x = 9,125,112.45
  5. Step 5: Solve for x
    x = 9,125,112.45/3,426.28
  6. Step 6: Final answer
    x = 2,663.27

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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.