Home / 5,423.10-8,135.88-1,960.34

Finding the Fourth Proportional to 5,423.10, 8,135.88 and 1,960.34

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Solution

The fourth proportional to 5,423.10, 8,135.88 and 1,960.34 is: 2,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.10 : 8,135.88 = 1,960.34 : x
  2. Step 2: Convert to fraction form
    5,423.10/8,135.88 = 1,960.34/x
  3. Step 3: Cross multiply
    5,423.10x = 8,135.88 × 1,960.34
  4. Step 4: Simplify right side
    5,423.10x = 15,949,091.00
  5. Step 5: Solve for x
    x = 15,949,091.00/5,423.10
  6. Step 6: Final answer
    x = 2,940.95

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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.