Home / 1,664.28-2,505.49-1,438.29

Finding the Fourth Proportional to 1,664.28, 2,505.49 and 1,438.29

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Solution

The fourth proportional to 1,664.28, 2,505.49 and 1,438.29 is: 2,165.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.28 : 2,505.49 = 1,438.29 : x
  2. Step 2: Convert to fraction form
    1,664.28/2,505.49 = 1,438.29/x
  3. Step 3: Cross multiply
    1,664.28x = 2,505.49 × 1,438.29
  4. Step 4: Simplify right side
    1,664.28x = 3,603,617.62
  5. Step 5: Solve for x
    x = 3,603,617.62/1,664.28
  6. Step 6: Final answer
    x = 2,165.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.