Home / 3,399.06-4,689.09-2,154.90

Finding the Fourth Proportional to 3,399.06, 4,689.09 and 2,154.90

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Solution

The fourth proportional to 3,399.06, 4,689.09 and 2,154.90 is: 2,972.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.06 : 4,689.09 = 2,154.90 : x
  2. Step 2: Convert to fraction form
    3,399.06/4,689.09 = 2,154.90/x
  3. Step 3: Cross multiply
    3,399.06x = 4,689.09 × 2,154.90
  4. Step 4: Simplify right side
    3,399.06x = 10,104,520.04
  5. Step 5: Solve for x
    x = 10,104,520.04/3,399.06
  6. Step 6: Final answer
    x = 2,972.74

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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.