Home / 3,469.50-5,182.09-3,139.92

Finding the Fourth Proportional to 3,469.50, 5,182.09 and 3,139.92

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Solution

The fourth proportional to 3,469.50, 5,182.09 and 3,139.92 is: 4,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.50 : 5,182.09 = 3,139.92 : x
  2. Step 2: Convert to fraction form
    3,469.50/5,182.09 = 3,139.92/x
  3. Step 3: Cross multiply
    3,469.50x = 5,182.09 × 3,139.92
  4. Step 4: Simplify right side
    3,469.50x = 16,271,340.18
  5. Step 5: Solve for x
    x = 16,271,340.18/3,469.50
  6. Step 6: Final answer
    x = 4,689.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.