Home / 3,492.75-5,238.50-1,152.78

Finding the Fourth Proportional to 3,492.75, 5,238.50 and 1,152.78

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Solution

The fourth proportional to 3,492.75, 5,238.50 and 1,152.78 is: 1,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.75 : 5,238.50 = 1,152.78 : x
  2. Step 2: Convert to fraction form
    3,492.75/5,238.50 = 1,152.78/x
  3. Step 3: Cross multiply
    3,492.75x = 5,238.50 × 1,152.78
  4. Step 4: Simplify right side
    3,492.75x = 6,038,845.33
  5. Step 5: Solve for x
    x = 6,038,845.33/3,492.75
  6. Step 6: Final answer
    x = 1,728.97

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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.