Home / 7,321.92-10,104.16-4,135.21

Finding the Fourth Proportional to 7,321.92, 10,104.16 and 4,135.21

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Solution

The fourth proportional to 7,321.92, 10,104.16 and 4,135.21 is: 5,706.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.92 : 10,104.16 = 4,135.21 : x
  2. Step 2: Convert to fraction form
    7,321.92/10,104.16 = 4,135.21/x
  3. Step 3: Cross multiply
    7,321.92x = 10,104.16 × 4,135.21
  4. Step 4: Simplify right side
    7,321.92x = 41,782,823.47
  5. Step 5: Solve for x
    x = 41,782,823.47/7,321.92
  6. Step 6: Final answer
    x = 5,706.54

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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.