Home / 3,423.30-4,720.92-3,168.72

Finding the Fourth Proportional to 3,423.30, 4,720.92 and 3,168.72

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Solution

The fourth proportional to 3,423.30, 4,720.92 and 3,168.72 is: 4,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.30 : 4,720.92 = 3,168.72 : x
  2. Step 2: Convert to fraction form
    3,423.30/4,720.92 = 3,168.72/x
  3. Step 3: Cross multiply
    3,423.30x = 4,720.92 × 3,168.72
  4. Step 4: Simplify right side
    3,423.30x = 14,959,273.62
  5. Step 5: Solve for x
    x = 14,959,273.62/3,423.30
  6. Step 6: Final answer
    x = 4,369.84

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1.5x scale

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.