Home / 3,220.08-4,443.92-1,803.89

Finding the Fourth Proportional to 3,220.08, 4,443.92 and 1,803.89

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Solution

The fourth proportional to 3,220.08, 4,443.92 and 1,803.89 is: 2,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.08 : 4,443.92 = 1,803.89 : x
  2. Step 2: Convert to fraction form
    3,220.08/4,443.92 = 1,803.89/x
  3. Step 3: Cross multiply
    3,220.08x = 4,443.92 × 1,803.89
  4. Step 4: Simplify right side
    3,220.08x = 8,016,311.61
  5. Step 5: Solve for x
    x = 8,016,311.61/3,220.08
  6. Step 6: Final answer
    x = 2,489.48

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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.