Home / 1,814.70-2,504.32-1,028.72

Finding the Fourth Proportional to 1,814.70, 2,504.32 and 1,028.72

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Solution

The fourth proportional to 1,814.70, 2,504.32 and 1,028.72 is: 1,419.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,814.70 : 2,504.32 = 1,028.72 : x
  2. Step 2: Convert to fraction form
    1,814.70/2,504.32 = 1,028.72/x
  3. Step 3: Cross multiply
    1,814.70x = 2,504.32 × 1,028.72
  4. Step 4: Simplify right side
    1,814.70x = 2,576,244.07
  5. Step 5: Solve for x
    x = 2,576,244.07/1,814.70
  6. Step 6: Final answer
    x = 1,419.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.