Home / 3,209.04-4,429.20-2,031.60

Finding the Fourth Proportional to 3,209.04, 4,429.20 and 2,031.60

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Solution

The fourth proportional to 3,209.04, 4,429.20 and 2,031.60 is: 2,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.04 : 4,429.20 = 2,031.60 : x
  2. Step 2: Convert to fraction form
    3,209.04/4,429.20 = 2,031.60/x
  3. Step 3: Cross multiply
    3,209.04x = 4,429.20 × 2,031.60
  4. Step 4: Simplify right side
    3,209.04x = 8,998,362.72
  5. Step 5: Solve for x
    x = 8,998,362.72/3,209.04
  6. Step 6: Final answer
    x = 2,804.07

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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.