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Finding the Fourth Proportional to 3,479.41, 5,220.03 and 1,724.34

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Solution

The fourth proportional to 3,479.41, 5,220.03 and 1,724.34 is: 2,586.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.41 : 5,220.03 = 1,724.34 : x
  2. Step 2: Convert to fraction form
    3,479.41/5,220.03 = 1,724.34/x
  3. Step 3: Cross multiply
    3,479.41x = 5,220.03 × 1,724.34
  4. Step 4: Simplify right side
    3,479.41x = 9,001,122.87
  5. Step 5: Solve for x
    x = 9,001,122.87/3,479.41
  6. Step 6: Final answer
    x = 2,586.97

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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.