Home / 3,209.64-4,429.29-1,812.36

Finding the Fourth Proportional to 3,209.64, 4,429.29 and 1,812.36

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Solution

The fourth proportional to 3,209.64, 4,429.29 and 1,812.36 is: 2,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.64 : 4,429.29 = 1,812.36 : x
  2. Step 2: Convert to fraction form
    3,209.64/4,429.29 = 1,812.36/x
  3. Step 3: Cross multiply
    3,209.64x = 4,429.29 × 1,812.36
  4. Step 4: Simplify right side
    3,209.64x = 8,027,468.02
  5. Step 5: Solve for x
    x = 8,027,468.02/3,209.64
  6. Step 6: Final answer
    x = 2,501.05

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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.