Home / 2,905.75-4,358.63-1,174.38

Finding the Fourth Proportional to 2,905.75, 4,358.63 and 1,174.38

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Solution

The fourth proportional to 2,905.75, 4,358.63 and 1,174.38 is: 1,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.75 : 4,358.63 = 1,174.38 : x
  2. Step 2: Convert to fraction form
    2,905.75/4,358.63 = 1,174.38/x
  3. Step 3: Cross multiply
    2,905.75x = 4,358.63 × 1,174.38
  4. Step 4: Simplify right side
    2,905.75x = 5,118,687.90
  5. Step 5: Solve for x
    x = 5,118,687.90/2,905.75
  6. Step 6: Final answer
    x = 1,761.57

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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.