Home / 3,391.56-4,679.33-2,133.86

Finding the Fourth Proportional to 3,391.56, 4,679.33 and 2,133.86

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Solution

The fourth proportional to 3,391.56, 4,679.33 and 2,133.86 is: 2,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.56 : 4,679.33 = 2,133.86 : x
  2. Step 2: Convert to fraction form
    3,391.56/4,679.33 = 2,133.86/x
  3. Step 3: Cross multiply
    3,391.56x = 4,679.33 × 2,133.86
  4. Step 4: Simplify right side
    3,391.56x = 9,985,038.74
  5. Step 5: Solve for x
    x = 9,985,038.74/3,391.56
  6. Step 6: Final answer
    x = 2,944.09

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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.