Home / 1,329.67-2,004.30-1,213.03

Finding the Fourth Proportional to 1,329.67, 2,004.30 and 1,213.03

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Solution

The fourth proportional to 1,329.67, 2,004.30 and 1,213.03 is: 1,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329.67 : 2,004.30 = 1,213.03 : x
  2. Step 2: Convert to fraction form
    1,329.67/2,004.30 = 1,213.03/x
  3. Step 3: Cross multiply
    1,329.67x = 2,004.30 × 1,213.03
  4. Step 4: Simplify right side
    1,329.67x = 2,431,276.03
  5. Step 5: Solve for x
    x = 2,431,276.03/1,329.67
  6. Step 6: Final answer
    x = 1,828.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.