Home / 5,275.20-7,910.94-1,811.64

Finding the Fourth Proportional to 5,275.20, 7,910.94 and 1,811.64

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Solution

The fourth proportional to 5,275.20, 7,910.94 and 1,811.64 is: 2,716.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.20 : 7,910.94 = 1,811.64 : x
  2. Step 2: Convert to fraction form
    5,275.20/7,910.94 = 1,811.64/x
  3. Step 3: Cross multiply
    5,275.20x = 7,910.94 × 1,811.64
  4. Step 4: Simplify right side
    5,275.20x = 14,331,775.34
  5. Step 5: Solve for x
    x = 14,331,775.34/5,275.20
  6. Step 6: Final answer
    x = 2,716.82

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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.