Home / 4,105.20-6,156.56-1,640.36

Finding the Fourth Proportional to 4,105.20, 6,156.56 and 1,640.36

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Solution

The fourth proportional to 4,105.20, 6,156.56 and 1,640.36 is: 2,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.20 : 6,156.56 = 1,640.36 : x
  2. Step 2: Convert to fraction form
    4,105.20/6,156.56 = 1,640.36/x
  3. Step 3: Cross multiply
    4,105.20x = 6,156.56 × 1,640.36
  4. Step 4: Simplify right side
    4,105.20x = 10,098,974.76
  5. Step 5: Solve for x
    x = 10,098,974.76/4,105.20
  6. Step 6: Final answer
    x = 2,460.04

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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.