Home / 2,216.72-3,325.44-1,240.76

Finding the Fourth Proportional to 2,216.72, 3,325.44 and 1,240.76

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Solution

The fourth proportional to 2,216.72, 3,325.44 and 1,240.76 is: 1,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.72 : 3,325.44 = 1,240.76 : x
  2. Step 2: Convert to fraction form
    2,216.72/3,325.44 = 1,240.76/x
  3. Step 3: Cross multiply
    2,216.72x = 3,325.44 × 1,240.76
  4. Step 4: Simplify right side
    2,216.72x = 4,126,072.93
  5. Step 5: Solve for x
    x = 4,126,072.93/2,216.72
  6. Step 6: Final answer
    x = 1,861.34

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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.