Home / 3,321.48-4,982.99-1,130.20

Finding the Fourth Proportional to 3,321.48, 4,982.99 and 1,130.20

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Solution

The fourth proportional to 3,321.48, 4,982.99 and 1,130.20 is: 1,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.48 : 4,982.99 = 1,130.20 : x
  2. Step 2: Convert to fraction form
    3,321.48/4,982.99 = 1,130.20/x
  3. Step 3: Cross multiply
    3,321.48x = 4,982.99 × 1,130.20
  4. Step 4: Simplify right side
    3,321.48x = 5,631,794.75
  5. Step 5: Solve for x
    x = 5,631,794.75/3,321.48
  6. Step 6: Final answer
    x = 1,695.57

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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.