Home / 2,087.64-3,126.60-1,161.72

Finding the Fourth Proportional to 2,087.64, 3,126.60 and 1,161.72

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Solution

The fourth proportional to 2,087.64, 3,126.60 and 1,161.72 is: 1,739.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.64 : 3,126.60 = 1,161.72 : x
  2. Step 2: Convert to fraction form
    2,087.64/3,126.60 = 1,161.72/x
  3. Step 3: Cross multiply
    2,087.64x = 3,126.60 × 1,161.72
  4. Step 4: Simplify right side
    2,087.64x = 3,632,233.75
  5. Step 5: Solve for x
    x = 3,632,233.75/2,087.64
  6. Step 6: Final answer
    x = 1,739.88

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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.