Home / 4,989.20-7,492.16-4,790.54

Finding the Fourth Proportional to 4,989.20, 7,492.16 and 4,790.54

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Solution

The fourth proportional to 4,989.20, 7,492.16 and 4,790.54 is: 7,193.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.20 : 7,492.16 = 4,790.54 : x
  2. Step 2: Convert to fraction form
    4,989.20/7,492.16 = 4,790.54/x
  3. Step 3: Cross multiply
    4,989.20x = 7,492.16 × 4,790.54
  4. Step 4: Simplify right side
    4,989.20x = 35,891,522.87
  5. Step 5: Solve for x
    x = 35,891,522.87/4,989.20
  6. Step 6: Final answer
    x = 7,193.85

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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.