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Finding the Fourth Proportional to 801.04, 1,105.49 and 535.03

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Solution

The fourth proportional to 801.04, 1,105.49 and 535.03 is: 738.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    801.04 : 1,105.49 = 535.03 : x
  2. Step 2: Convert to fraction form
    801.04/1,105.49 = 535.03/x
  3. Step 3: Cross multiply
    801.04x = 1,105.49 × 535.03
  4. Step 4: Simplify right side
    801.04x = 591,470.31
  5. Step 5: Solve for x
    x = 591,470.31/801.04
  6. Step 6: Final answer
    x = 738.38

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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.