Home / 5,518.20-7,609.92-4,257.25

Finding the Fourth Proportional to 5,518.20, 7,609.92 and 4,257.25

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Solution

The fourth proportional to 5,518.20, 7,609.92 and 4,257.25 is: 5,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.20 : 7,609.92 = 4,257.25 : x
  2. Step 2: Convert to fraction form
    5,518.20/7,609.92 = 4,257.25/x
  3. Step 3: Cross multiply
    5,518.20x = 7,609.92 × 4,257.25
  4. Step 4: Simplify right side
    5,518.20x = 32,397,331.92
  5. Step 5: Solve for x
    x = 32,397,331.92/5,518.20
  6. Step 6: Final answer
    x = 5,871.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.