Home / 7,856.48-11,785.32-2,589.44

Finding the Fourth Proportional to 7,856.48, 11,785.32 and 2,589.44

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Solution

The fourth proportional to 7,856.48, 11,785.32 and 2,589.44 is: 3,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.48 : 11,785.32 = 2,589.44 : x
  2. Step 2: Convert to fraction form
    7,856.48/11,785.32 = 2,589.44/x
  3. Step 3: Cross multiply
    7,856.48x = 11,785.32 × 2,589.44
  4. Step 4: Simplify right side
    7,856.48x = 30,517,379.02
  5. Step 5: Solve for x
    x = 30,517,379.02/7,856.48
  6. Step 6: Final answer
    x = 3,884.36

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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.