Home / 2,082.21-2,872.85-1,197.69

Finding the Fourth Proportional to 2,082.21, 2,872.85 and 1,197.69

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Solution

The fourth proportional to 2,082.21, 2,872.85 and 1,197.69 is: 1,652.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082.21 : 2,872.85 = 1,197.69 : x
  2. Step 2: Convert to fraction form
    2,082.21/2,872.85 = 1,197.69/x
  3. Step 3: Cross multiply
    2,082.21x = 2,872.85 × 1,197.69
  4. Step 4: Simplify right side
    2,082.21x = 3,440,777.73
  5. Step 5: Solve for x
    x = 3,440,777.73/2,082.21
  6. Step 6: Final answer
    x = 1,652.46

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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.