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Finding the Fourth Proportional to 4,409.91, 6,580.78 and 3,919.05

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Solution

The fourth proportional to 4,409.91, 6,580.78 and 3,919.05 is: 5,848.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,409.91 : 6,580.78 = 3,919.05 : x
  2. Step 2: Convert to fraction form
    4,409.91/6,580.78 = 3,919.05/x
  3. Step 3: Cross multiply
    4,409.91x = 6,580.78 × 3,919.05
  4. Step 4: Simplify right side
    4,409.91x = 25,790,396.06
  5. Step 5: Solve for x
    x = 25,790,396.06/4,409.91
  6. Step 6: Final answer
    x = 5,848.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.