Home / 3,165.42-4,748.19-1,087.81

Finding the Fourth Proportional to 3,165.42, 4,748.19 and 1,087.81

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Solution

The fourth proportional to 3,165.42, 4,748.19 and 1,087.81 is: 1,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.42 : 4,748.19 = 1,087.81 : x
  2. Step 2: Convert to fraction form
    3,165.42/4,748.19 = 1,087.81/x
  3. Step 3: Cross multiply
    3,165.42x = 4,748.19 × 1,087.81
  4. Step 4: Simplify right side
    3,165.42x = 5,165,128.56
  5. Step 5: Solve for x
    x = 5,165,128.56/3,165.42
  6. Step 6: Final answer
    x = 1,631.74

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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.