Home / 1,614.21-2,421.78-792.54

Finding the Fourth Proportional to 1,614.21, 2,421.78 and 792.54

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Solution

The fourth proportional to 1,614.21, 2,421.78 and 792.54 is: 1,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.21 : 2,421.78 = 792.54 : x
  2. Step 2: Convert to fraction form
    1,614.21/2,421.78 = 792.54/x
  3. Step 3: Cross multiply
    1,614.21x = 2,421.78 × 792.54
  4. Step 4: Simplify right side
    1,614.21x = 1,919,357.52
  5. Step 5: Solve for x
    x = 1,919,357.52/1,614.21
  6. Step 6: Final answer
    x = 1,189.04

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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.