Home / 3,421.96-5,132.50-1,082.21

Finding the Fourth Proportional to 3,421.96, 5,132.50 and 1,082.21

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Solution

The fourth proportional to 3,421.96, 5,132.50 and 1,082.21 is: 1,623.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.96 : 5,132.50 = 1,082.21 : x
  2. Step 2: Convert to fraction form
    3,421.96/5,132.50 = 1,082.21/x
  3. Step 3: Cross multiply
    3,421.96x = 5,132.50 × 1,082.21
  4. Step 4: Simplify right side
    3,421.96x = 5,554,419.87
  5. Step 5: Solve for x
    x = 5,554,419.87/3,421.96
  6. Step 6: Final answer
    x = 1,623.17

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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.