Home / 4,623.57-6,939.97-3,142.90

Finding the Fourth Proportional to 4,623.57, 6,939.97 and 3,142.90

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Solution

The fourth proportional to 4,623.57, 6,939.97 and 3,142.90 is: 4,717.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,623.57 : 6,939.97 = 3,142.90 : x
  2. Step 2: Convert to fraction form
    4,623.57/6,939.97 = 3,142.90/x
  3. Step 3: Cross multiply
    4,623.57x = 6,939.97 × 3,142.90
  4. Step 4: Simplify right side
    4,623.57x = 21,811,628.11
  5. Step 5: Solve for x
    x = 21,811,628.11/4,623.57
  6. Step 6: Final answer
    x = 4,717.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.