Home / 7,321.50-10,982.18-2,391.12

Finding the Fourth Proportional to 7,321.50, 10,982.18 and 2,391.12

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Solution

The fourth proportional to 7,321.50, 10,982.18 and 2,391.12 is: 3,586.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.50 : 10,982.18 = 2,391.12 : x
  2. Step 2: Convert to fraction form
    7,321.50/10,982.18 = 2,391.12/x
  3. Step 3: Cross multiply
    7,321.50x = 10,982.18 × 2,391.12
  4. Step 4: Simplify right side
    7,321.50x = 26,259,710.24
  5. Step 5: Solve for x
    x = 26,259,710.24/7,321.50
  6. Step 6: Final answer
    x = 3,586.66

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Double scale
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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.