Home / 5,191.76-7,780.32-2,263.92

Finding the Fourth Proportional to 5,191.76, 7,780.32 and 2,263.92

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Solution

The fourth proportional to 5,191.76, 7,780.32 and 2,263.92 is: 3,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.76 : 7,780.32 = 2,263.92 : x
  2. Step 2: Convert to fraction form
    5,191.76/7,780.32 = 2,263.92/x
  3. Step 3: Cross multiply
    5,191.76x = 7,780.32 × 2,263.92
  4. Step 4: Simplify right side
    5,191.76x = 17,614,022.05
  5. Step 5: Solve for x
    x = 17,614,022.05/5,191.76
  6. Step 6: Final answer
    x = 3,392.69

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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.