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Finding the Fourth Proportional to 2,504.69, 3,757.04 and 861.23

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Solution

The fourth proportional to 2,504.69, 3,757.04 and 861.23 is: 1,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,504.69 : 3,757.04 = 861.23 : x
  2. Step 2: Convert to fraction form
    2,504.69/3,757.04 = 861.23/x
  3. Step 3: Cross multiply
    2,504.69x = 3,757.04 × 861.23
  4. Step 4: Simplify right side
    2,504.69x = 3,235,652.47
  5. Step 5: Solve for x
    x = 3,235,652.47/2,504.69
  6. Step 6: Final answer
    x = 1,291.84

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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.