Home / 5,620.49-8,431.64-2,110.77

Finding the Fourth Proportional to 5,620.49, 8,431.64 and 2,110.77

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Solution

The fourth proportional to 5,620.49, 8,431.64 and 2,110.77 is: 3,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.49 : 8,431.64 = 2,110.77 : x
  2. Step 2: Convert to fraction form
    5,620.49/8,431.64 = 2,110.77/x
  3. Step 3: Cross multiply
    5,620.49x = 8,431.64 × 2,110.77
  4. Step 4: Simplify right side
    5,620.49x = 17,797,210.60
  5. Step 5: Solve for x
    x = 17,797,210.60/5,620.49
  6. Step 6: Final answer
    x = 3,166.49

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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.