Home / 1,815.54-2,723.37-499.42

Finding the Fourth Proportional to 1,815.54, 2,723.37 and 499.42

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Solution

The fourth proportional to 1,815.54, 2,723.37 and 499.42 is: 749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.54 : 2,723.37 = 499.42 : x
  2. Step 2: Convert to fraction form
    1,815.54/2,723.37 = 499.42/x
  3. Step 3: Cross multiply
    1,815.54x = 2,723.37 × 499.42
  4. Step 4: Simplify right side
    1,815.54x = 1,360,105.45
  5. Step 5: Solve for x
    x = 1,360,105.45/1,815.54
  6. Step 6: Final answer
    x = 749.15

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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.