Home / 3,423.26-5,133.86-1,778.91

Finding the Fourth Proportional to 3,423.26, 5,133.86 and 1,778.91

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Solution

The fourth proportional to 3,423.26, 5,133.86 and 1,778.91 is: 2,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.26 : 5,133.86 = 1,778.91 : x
  2. Step 2: Convert to fraction form
    3,423.26/5,133.86 = 1,778.91/x
  3. Step 3: Cross multiply
    3,423.26x = 5,133.86 × 1,778.91
  4. Step 4: Simplify right side
    3,423.26x = 9,132,679.34
  5. Step 5: Solve for x
    x = 9,132,679.34/3,423.26
  6. Step 6: Final answer
    x = 2,667.83

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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.