Home / 5,520.99-7,618.75-3,162.68

Finding the Fourth Proportional to 5,520.99, 7,618.75 and 3,162.68

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Solution

The fourth proportional to 5,520.99, 7,618.75 and 3,162.68 is: 4,364.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520.99 : 7,618.75 = 3,162.68 : x
  2. Step 2: Convert to fraction form
    5,520.99/7,618.75 = 3,162.68/x
  3. Step 3: Cross multiply
    5,520.99x = 7,618.75 × 3,162.68
  4. Step 4: Simplify right side
    5,520.99x = 24,095,622.25
  5. Step 5: Solve for x
    x = 24,095,622.25/5,520.99
  6. Step 6: Final answer
    x = 4,364.37

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Half scale
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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.