Home / 5,689.37-8,534.07-2,178.56

Finding the Fourth Proportional to 5,689.37, 8,534.07 and 2,178.56

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Solution

The fourth proportional to 5,689.37, 8,534.07 and 2,178.56 is: 3,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,689.37 : 8,534.07 = 2,178.56 : x
  2. Step 2: Convert to fraction form
    5,689.37/8,534.07 = 2,178.56/x
  3. Step 3: Cross multiply
    5,689.37x = 8,534.07 × 2,178.56
  4. Step 4: Simplify right side
    5,689.37x = 18,591,983.54
  5. Step 5: Solve for x
    x = 18,591,983.54/5,689.37
  6. Step 6: Final answer
    x = 3,267.85

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Double scale
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Similar ratio
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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.