Home / 3,285.90-4,934.72-3,153.78

Finding the Fourth Proportional to 3,285.90, 4,934.72 and 3,153.78

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Solution

The fourth proportional to 3,285.90, 4,934.72 and 3,153.78 is: 4,736.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.90 : 4,934.72 = 3,153.78 : x
  2. Step 2: Convert to fraction form
    3,285.90/4,934.72 = 3,153.78/x
  3. Step 3: Cross multiply
    3,285.90x = 4,934.72 × 3,153.78
  4. Step 4: Simplify right side
    3,285.90x = 15,563,021.24
  5. Step 5: Solve for x
    x = 15,563,021.24/3,285.90
  6. Step 6: Final answer
    x = 4,736.30

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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.