Home / 1,834.30-2,751.56-518.15

Finding the Fourth Proportional to 1,834.30, 2,751.56 and 518.15

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Solution

The fourth proportional to 1,834.30, 2,751.56 and 518.15 is: 777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834.30 : 2,751.56 = 518.15 : x
  2. Step 2: Convert to fraction form
    1,834.30/2,751.56 = 518.15/x
  3. Step 3: Cross multiply
    1,834.30x = 2,751.56 × 518.15
  4. Step 4: Simplify right side
    1,834.30x = 1,425,719.55
  5. Step 5: Solve for x
    x = 1,425,719.55/1,834.30
  6. Step 6: Final answer
    x = 777.26

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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.