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Finding the Fourth Proportional to 3,492.54, 5,262.84 and 2,889.79

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Solution

The fourth proportional to 3,492.54, 5,262.84 and 2,889.79 is: 4,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.54 : 5,262.84 = 2,889.79 : x
  2. Step 2: Convert to fraction form
    3,492.54/5,262.84 = 2,889.79/x
  3. Step 3: Cross multiply
    3,492.54x = 5,262.84 × 2,889.79
  4. Step 4: Simplify right side
    3,492.54x = 15,208,489.25
  5. Step 5: Solve for x
    x = 15,208,489.25/3,492.54
  6. Step 6: Final answer
    x = 4,354.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.