Home / 3,203.67-4,421.70-1,787.79

Finding the Fourth Proportional to 3,203.67, 4,421.70 and 1,787.79

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Solution

The fourth proportional to 3,203.67, 4,421.70 and 1,787.79 is: 2,467.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,203.67 : 4,421.70 = 1,787.79 : x
  2. Step 2: Convert to fraction form
    3,203.67/4,421.70 = 1,787.79/x
  3. Step 3: Cross multiply
    3,203.67x = 4,421.70 × 1,787.79
  4. Step 4: Simplify right side
    3,203.67x = 7,905,071.04
  5. Step 5: Solve for x
    x = 7,905,071.04/3,203.67
  6. Step 6: Final answer
    x = 2,467.50

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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.