Home / 3,223.40-4,446.90-2,160.07

Finding the Fourth Proportional to 3,223.40, 4,446.90 and 2,160.07

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Solution

The fourth proportional to 3,223.40, 4,446.90 and 2,160.07 is: 2,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.40 : 4,446.90 = 2,160.07 : x
  2. Step 2: Convert to fraction form
    3,223.40/4,446.90 = 2,160.07/x
  3. Step 3: Cross multiply
    3,223.40x = 4,446.90 × 2,160.07
  4. Step 4: Simplify right side
    3,223.40x = 9,605,604.17
  5. Step 5: Solve for x
    x = 9,605,604.17/3,223.40
  6. Step 6: Final answer
    x = 2,979.96

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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.