Home / 3,317.56-4,575.04-2,139

Finding the Fourth Proportional to 3,317.56, 4,575.04 and 2,139

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Solution

The fourth proportional to 3,317.56, 4,575.04 and 2,139 is: 2,949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.56 : 4,575.04 = 2,139 : x
  2. Step 2: Convert to fraction form
    3,317.56/4,575.04 = 2,139/x
  3. Step 3: Cross multiply
    3,317.56x = 4,575.04 × 2,139
  4. Step 4: Simplify right side
    3,317.56x = 9,786,010.56
  5. Step 5: Solve for x
    x = 9,786,010.56/3,317.56
  6. Step 6: Final answer
    x = 2,949.76

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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.