Home / 1,861.08-2,791.97-887.25

Finding the Fourth Proportional to 1,861.08, 2,791.97 and 887.25

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Solution

The fourth proportional to 1,861.08, 2,791.97 and 887.25 is: 1,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.08 : 2,791.97 = 887.25 : x
  2. Step 2: Convert to fraction form
    1,861.08/2,791.97 = 887.25/x
  3. Step 3: Cross multiply
    1,861.08x = 2,791.97 × 887.25
  4. Step 4: Simplify right side
    1,861.08x = 2,477,184.74
  5. Step 5: Solve for x
    x = 2,477,184.74/1,861.08
  6. Step 6: Final answer
    x = 1,331.05

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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.