Home / 5,661.30-8,486.10-2,542.80

Finding the Fourth Proportional to 5,661.30, 8,486.10 and 2,542.80

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Solution

The fourth proportional to 5,661.30, 8,486.10 and 2,542.80 is: 3,811.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.30 : 8,486.10 = 2,542.80 : x
  2. Step 2: Convert to fraction form
    5,661.30/8,486.10 = 2,542.80/x
  3. Step 3: Cross multiply
    5,661.30x = 8,486.10 × 2,542.80
  4. Step 4: Simplify right side
    5,661.30x = 21,578,455.08
  5. Step 5: Solve for x
    x = 21,578,455.08/5,661.30
  6. Step 6: Final answer
    x = 3,811.57

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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.