Home / 2,321.04-3,201.70-1,658.80

Finding the Fourth Proportional to 2,321.04, 3,201.70 and 1,658.80

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Solution

The fourth proportional to 2,321.04, 3,201.70 and 1,658.80 is: 2,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.04 : 3,201.70 = 1,658.80 : x
  2. Step 2: Convert to fraction form
    2,321.04/3,201.70 = 1,658.80/x
  3. Step 3: Cross multiply
    2,321.04x = 3,201.70 × 1,658.80
  4. Step 4: Simplify right side
    2,321.04x = 5,310,979.96
  5. Step 5: Solve for x
    x = 5,310,979.96/2,321.04
  6. Step 6: Final answer
    x = 2,288.19

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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.