Home / 3,287.45-4,927.01-1,438.09

Finding the Fourth Proportional to 3,287.45, 4,927.01 and 1,438.09

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Solution

The fourth proportional to 3,287.45, 4,927.01 and 1,438.09 is: 2,155.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.45 : 4,927.01 = 1,438.09 : x
  2. Step 2: Convert to fraction form
    3,287.45/4,927.01 = 1,438.09/x
  3. Step 3: Cross multiply
    3,287.45x = 4,927.01 × 1,438.09
  4. Step 4: Simplify right side
    3,287.45x = 7,085,464.30
  5. Step 5: Solve for x
    x = 7,085,464.30/3,287.45
  6. Step 6: Final answer
    x = 2,155.31

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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.