Home / 1,614.45-2,419.78-746.94

Finding the Fourth Proportional to 1,614.45, 2,419.78 and 746.94

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Solution

The fourth proportional to 1,614.45, 2,419.78 and 746.94 is: 1,119.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,614.45 : 2,419.78 = 746.94 : x
  2. Step 2: Convert to fraction form
    1,614.45/2,419.78 = 746.94/x
  3. Step 3: Cross multiply
    1,614.45x = 2,419.78 × 746.94
  4. Step 4: Simplify right side
    1,614.45x = 1,807,430.47
  5. Step 5: Solve for x
    x = 1,807,430.47/1,614.45
  6. Step 6: Final answer
    x = 1,119.53

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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.