Home / 2,861.67-3,952.89-2,206.74

Finding the Fourth Proportional to 2,861.67, 3,952.89 and 2,206.74

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Solution

The fourth proportional to 2,861.67, 3,952.89 and 2,206.74 is: 3,048.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.67 : 3,952.89 = 2,206.74 : x
  2. Step 2: Convert to fraction form
    2,861.67/3,952.89 = 2,206.74/x
  3. Step 3: Cross multiply
    2,861.67x = 3,952.89 × 2,206.74
  4. Step 4: Simplify right side
    2,861.67x = 8,723,000.48
  5. Step 5: Solve for x
    x = 8,723,000.48/2,861.67
  6. Step 6: Final answer
    x = 3,048.22

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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.