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Finding the Fourth Proportional to 3,480.84, 5,221.44 and 1,747.44

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Solution

The fourth proportional to 3,480.84, 5,221.44 and 1,747.44 is: 2,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.84 : 5,221.44 = 1,747.44 : x
  2. Step 2: Convert to fraction form
    3,480.84/5,221.44 = 1,747.44/x
  3. Step 3: Cross multiply
    3,480.84x = 5,221.44 × 1,747.44
  4. Step 4: Simplify right side
    3,480.84x = 9,124,153.11
  5. Step 5: Solve for x
    x = 9,124,153.11/3,480.84
  6. Step 6: Final answer
    x = 2,621.25

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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.