Home / 3,321.29-4,981.79-1,130.04

Finding the Fourth Proportional to 3,321.29, 4,981.79 and 1,130.04

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Solution

The fourth proportional to 3,321.29, 4,981.79 and 1,130.04 is: 1,695.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.29 : 4,981.79 = 1,130.04 : x
  2. Step 2: Convert to fraction form
    3,321.29/4,981.79 = 1,130.04/x
  3. Step 3: Cross multiply
    3,321.29x = 4,981.79 × 1,130.04
  4. Step 4: Simplify right side
    3,321.29x = 5,629,624.80
  5. Step 5: Solve for x
    x = 5,629,624.80/3,321.29
  6. Step 6: Final answer
    x = 1,695.01

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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.