Home / 2,058.96-3,082.20-1,329.20

Finding the Fourth Proportional to 2,058.96, 3,082.20 and 1,329.20

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Solution

The fourth proportional to 2,058.96, 3,082.20 and 1,329.20 is: 1,989.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,058.96 : 3,082.20 = 1,329.20 : x
  2. Step 2: Convert to fraction form
    2,058.96/3,082.20 = 1,329.20/x
  3. Step 3: Cross multiply
    2,058.96x = 3,082.20 × 1,329.20
  4. Step 4: Simplify right side
    2,058.96x = 4,096,860.24
  5. Step 5: Solve for x
    x = 4,096,860.24/2,058.96
  6. Step 6: Final answer
    x = 1,989.77

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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.