Home / 3,206.30-4,424.69-1,809.05

Finding the Fourth Proportional to 3,206.30, 4,424.69 and 1,809.05

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Solution

The fourth proportional to 3,206.30, 4,424.69 and 1,809.05 is: 2,496.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.30 : 4,424.69 = 1,809.05 : x
  2. Step 2: Convert to fraction form
    3,206.30/4,424.69 = 1,809.05/x
  3. Step 3: Cross multiply
    3,206.30x = 4,424.69 × 1,809.05
  4. Step 4: Simplify right side
    3,206.30x = 8,004,476.40
  5. Step 5: Solve for x
    x = 8,004,476.40/3,206.30
  6. Step 6: Final answer
    x = 2,496.48

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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.