Home / 7,917.49-11,872.40-3,235.64

Finding the Fourth Proportional to 7,917.49, 11,872.40 and 3,235.64

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Solution

The fourth proportional to 7,917.49, 11,872.40 and 3,235.64 is: 4,851.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.49 : 11,872.40 = 3,235.64 : x
  2. Step 2: Convert to fraction form
    7,917.49/11,872.40 = 3,235.64/x
  3. Step 3: Cross multiply
    7,917.49x = 11,872.40 × 3,235.64
  4. Step 4: Simplify right side
    7,917.49x = 38,414,812.34
  5. Step 5: Solve for x
    x = 38,414,812.34/7,917.49
  6. Step 6: Final answer
    x = 4,851.89

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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.