Home / 3,209.75-4,429.56-1,812.50

Finding the Fourth Proportional to 3,209.75, 4,429.56 and 1,812.50

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Solution

The fourth proportional to 3,209.75, 4,429.56 and 1,812.50 is: 2,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.75 : 4,429.56 = 1,812.50 : x
  2. Step 2: Convert to fraction form
    3,209.75/4,429.56 = 1,812.50/x
  3. Step 3: Cross multiply
    3,209.75x = 4,429.56 × 1,812.50
  4. Step 4: Simplify right side
    3,209.75x = 8,028,577.50
  5. Step 5: Solve for x
    x = 8,028,577.50/3,209.75
  6. Step 6: Final answer
    x = 2,501.31

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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.