Home / 2,329.22-3,213.48-1,320.80

Finding the Fourth Proportional to 2,329.22, 3,213.48 and 1,320.80

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Solution

The fourth proportional to 2,329.22, 3,213.48 and 1,320.80 is: 1,822.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.22 : 3,213.48 = 1,320.80 : x
  2. Step 2: Convert to fraction form
    2,329.22/3,213.48 = 1,320.80/x
  3. Step 3: Cross multiply
    2,329.22x = 3,213.48 × 1,320.80
  4. Step 4: Simplify right side
    2,329.22x = 4,244,364.38
  5. Step 5: Solve for x
    x = 4,244,364.38/2,329.22
  6. Step 6: Final answer
    x = 1,822.23

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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.