Home / 2,289.43-3,428.64-2,174.59

Finding the Fourth Proportional to 2,289.43, 3,428.64 and 2,174.59

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Solution

The fourth proportional to 2,289.43, 3,428.64 and 2,174.59 is: 3,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.43 : 3,428.64 = 2,174.59 : x
  2. Step 2: Convert to fraction form
    2,289.43/3,428.64 = 2,174.59/x
  3. Step 3: Cross multiply
    2,289.43x = 3,428.64 × 2,174.59
  4. Step 4: Simplify right side
    2,289.43x = 7,455,886.26
  5. Step 5: Solve for x
    x = 7,455,886.26/2,289.43
  6. Step 6: Final answer
    x = 3,256.66

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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.