Home / 1,330.80-1,996.19-356.97

Finding the Fourth Proportional to 1,330.80, 1,996.19 and 356.97

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Solution

The fourth proportional to 1,330.80, 1,996.19 and 356.97 is: 535.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.80 : 1,996.19 = 356.97 : x
  2. Step 2: Convert to fraction form
    1,330.80/1,996.19 = 356.97/x
  3. Step 3: Cross multiply
    1,330.80x = 1,996.19 × 356.97
  4. Step 4: Simplify right side
    1,330.80x = 712,579.94
  5. Step 5: Solve for x
    x = 712,579.94/1,330.80
  6. Step 6: Final answer
    x = 535.45

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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.