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Finding the Fourth Proportional to 2,763.04, 4,144.48 and 939.04

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Solution

The fourth proportional to 2,763.04, 4,144.48 and 939.04 is: 1,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.04 : 4,144.48 = 939.04 : x
  2. Step 2: Convert to fraction form
    2,763.04/4,144.48 = 939.04/x
  3. Step 3: Cross multiply
    2,763.04x = 4,144.48 × 939.04
  4. Step 4: Simplify right side
    2,763.04x = 3,891,832.50
  5. Step 5: Solve for x
    x = 3,891,832.50/2,763.04
  6. Step 6: Final answer
    x = 1,408.53

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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.