Home / 3,207.08-4,425.78-1,809.80

Finding the Fourth Proportional to 3,207.08, 4,425.78 and 1,809.80

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Solution

The fourth proportional to 3,207.08, 4,425.78 and 1,809.80 is: 2,497.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.08 : 4,425.78 = 1,809.80 : x
  2. Step 2: Convert to fraction form
    3,207.08/4,425.78 = 1,809.80/x
  3. Step 3: Cross multiply
    3,207.08x = 4,425.78 × 1,809.80
  4. Step 4: Simplify right side
    3,207.08x = 8,009,776.64
  5. Step 5: Solve for x
    x = 8,009,776.64/3,207.08
  6. Step 6: Final answer
    x = 2,497.53

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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.