Home / 5,406.45-8,105.57-2,285.87

Finding the Fourth Proportional to 5,406.45, 8,105.57 and 2,285.87

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Solution

The fourth proportional to 5,406.45, 8,105.57 and 2,285.87 is: 3,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.45 : 8,105.57 = 2,285.87 : x
  2. Step 2: Convert to fraction form
    5,406.45/8,105.57 = 2,285.87/x
  3. Step 3: Cross multiply
    5,406.45x = 8,105.57 × 2,285.87
  4. Step 4: Simplify right side
    5,406.45x = 18,528,281.50
  5. Step 5: Solve for x
    x = 18,528,281.50/5,406.45
  6. Step 6: Final answer
    x = 3,427.07

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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.