Home / 3,223.23-4,437.75-2,809.05

Finding the Fourth Proportional to 3,223.23, 4,437.75 and 2,809.05

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Solution

The fourth proportional to 3,223.23, 4,437.75 and 2,809.05 is: 3,867.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.23 : 4,437.75 = 2,809.05 : x
  2. Step 2: Convert to fraction form
    3,223.23/4,437.75 = 2,809.05/x
  3. Step 3: Cross multiply
    3,223.23x = 4,437.75 × 2,809.05
  4. Step 4: Simplify right side
    3,223.23x = 12,465,861.64
  5. Step 5: Solve for x
    x = 12,465,861.64/3,223.23
  6. Step 6: Final answer
    x = 3,867.51

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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.