Home / 7,855.72-11,785.02-2,591.04

Finding the Fourth Proportional to 7,855.72, 11,785.02 and 2,591.04

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Solution

The fourth proportional to 7,855.72, 11,785.02 and 2,591.04 is: 3,887.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.72 : 11,785.02 = 2,591.04 : x
  2. Step 2: Convert to fraction form
    7,855.72/11,785.02 = 2,591.04/x
  3. Step 3: Cross multiply
    7,855.72x = 11,785.02 × 2,591.04
  4. Step 4: Simplify right side
    7,855.72x = 30,535,458.22
  5. Step 5: Solve for x
    x = 30,535,458.22/7,855.72
  6. Step 6: Final answer
    x = 3,887.03

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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.