Home / 5,470.05-8,205.20-1,960.29

Finding the Fourth Proportional to 5,470.05, 8,205.20 and 1,960.29

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Solution

The fourth proportional to 5,470.05, 8,205.20 and 1,960.29 is: 2,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.05 : 8,205.20 = 1,960.29 : x
  2. Step 2: Convert to fraction form
    5,470.05/8,205.20 = 1,960.29/x
  3. Step 3: Cross multiply
    5,470.05x = 8,205.20 × 1,960.29
  4. Step 4: Simplify right side
    5,470.05x = 16,084,561.71
  5. Step 5: Solve for x
    x = 16,084,561.71/5,470.05
  6. Step 6: Final answer
    x = 2,940.48

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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.