Home / 4,087.77-6,129.82-1,165.38

Finding the Fourth Proportional to 4,087.77, 6,129.82 and 1,165.38

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Solution

The fourth proportional to 4,087.77, 6,129.82 and 1,165.38 is: 1,747.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.77 : 6,129.82 = 1,165.38 : x
  2. Step 2: Convert to fraction form
    4,087.77/6,129.82 = 1,165.38/x
  3. Step 3: Cross multiply
    4,087.77x = 6,129.82 × 1,165.38
  4. Step 4: Simplify right side
    4,087.77x = 7,143,563.80
  5. Step 5: Solve for x
    x = 7,143,563.80/4,087.77
  6. Step 6: Final answer
    x = 1,747.55

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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.