Home / 1,836.34-2,754.18-1,147.28

Finding the Fourth Proportional to 1,836.34, 2,754.18 and 1,147.28

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Solution

The fourth proportional to 1,836.34, 2,754.18 and 1,147.28 is: 1,720.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836.34 : 2,754.18 = 1,147.28 : x
  2. Step 2: Convert to fraction form
    1,836.34/2,754.18 = 1,147.28/x
  3. Step 3: Cross multiply
    1,836.34x = 2,754.18 × 1,147.28
  4. Step 4: Simplify right side
    1,836.34x = 3,159,815.63
  5. Step 5: Solve for x
    x = 3,159,815.63/1,836.34
  6. Step 6: Final answer
    x = 1,720.71

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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.