Home / 3,209.59-4,429.06-1,812.25

Finding the Fourth Proportional to 3,209.59, 4,429.06 and 1,812.25

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Solution

The fourth proportional to 3,209.59, 4,429.06 and 1,812.25 is: 2,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.59 : 4,429.06 = 1,812.25 : x
  2. Step 2: Convert to fraction form
    3,209.59/4,429.06 = 1,812.25/x
  3. Step 3: Cross multiply
    3,209.59x = 4,429.06 × 1,812.25
  4. Step 4: Simplify right side
    3,209.59x = 8,026,563.99
  5. Step 5: Solve for x
    x = 8,026,563.99/3,209.59
  6. Step 6: Final answer
    x = 2,500.81

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1.5x scale

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.