Home / 2,572.20-3,858.34-624.42

Finding the Fourth Proportional to 2,572.20, 3,858.34 and 624.42

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Solution

The fourth proportional to 2,572.20, 3,858.34 and 624.42 is: 936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.20 : 3,858.34 = 624.42 : x
  2. Step 2: Convert to fraction form
    2,572.20/3,858.34 = 624.42/x
  3. Step 3: Cross multiply
    2,572.20x = 3,858.34 × 624.42
  4. Step 4: Simplify right side
    2,572.20x = 2,409,224.66
  5. Step 5: Solve for x
    x = 2,409,224.66/2,572.20
  6. Step 6: Final answer
    x = 936.64

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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.