Home / 7,790.83-11,679.74-3,628.70

Finding the Fourth Proportional to 7,790.83, 11,679.74 and 3,628.70

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Solution

The fourth proportional to 7,790.83, 11,679.74 and 3,628.70 is: 5,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.83 : 11,679.74 = 3,628.70 : x
  2. Step 2: Convert to fraction form
    7,790.83/11,679.74 = 3,628.70/x
  3. Step 3: Cross multiply
    7,790.83x = 11,679.74 × 3,628.70
  4. Step 4: Simplify right side
    7,790.83x = 42,382,273.81
  5. Step 5: Solve for x
    x = 42,382,273.81/7,790.83
  6. Step 6: Final answer
    x = 5,440.02

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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.