Home / 5,403.37-8,104.32-2,118.76

Finding the Fourth Proportional to 5,403.37, 8,104.32 and 2,118.76

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Solution

The fourth proportional to 5,403.37, 8,104.32 and 2,118.76 is: 3,177.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.37 : 8,104.32 = 2,118.76 : x
  2. Step 2: Convert to fraction form
    5,403.37/8,104.32 = 2,118.76/x
  3. Step 3: Cross multiply
    5,403.37x = 8,104.32 × 2,118.76
  4. Step 4: Simplify right side
    5,403.37x = 17,171,109.04
  5. Step 5: Solve for x
    x = 17,171,109.04/5,403.37
  6. Step 6: Final answer
    x = 3,177.85

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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.