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Finding the Fourth Proportional to 2,747.84, 4,118.88 and 2,173.76

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Solution

The fourth proportional to 2,747.84, 4,118.88 and 2,173.76 is: 3,258.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.84 : 4,118.88 = 2,173.76 : x
  2. Step 2: Convert to fraction form
    2,747.84/4,118.88 = 2,173.76/x
  3. Step 3: Cross multiply
    2,747.84x = 4,118.88 × 2,173.76
  4. Step 4: Simplify right side
    2,747.84x = 8,953,456.59
  5. Step 5: Solve for x
    x = 8,953,456.59/2,747.84
  6. Step 6: Final answer
    x = 3,258.36

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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.