Home / 5,470.45-8,207.70-1,772.80

Finding the Fourth Proportional to 5,470.45, 8,207.70 and 1,772.80

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Solution

The fourth proportional to 5,470.45, 8,207.70 and 1,772.80 is: 2,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,470.45 : 8,207.70 = 1,772.80 : x
  2. Step 2: Convert to fraction form
    5,470.45/8,207.70 = 1,772.80/x
  3. Step 3: Cross multiply
    5,470.45x = 8,207.70 × 1,772.80
  4. Step 4: Simplify right side
    5,470.45x = 14,550,610.56
  5. Step 5: Solve for x
    x = 14,550,610.56/5,470.45
  6. Step 6: Final answer
    x = 2,659.86

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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.