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Finding the Fourth Proportional to 7,321.67, 10,983.17 and 2,391.33

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Solution

The fourth proportional to 7,321.67, 10,983.17 and 2,391.33 is: 3,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.67 : 10,983.17 = 2,391.33 : x
  2. Step 2: Convert to fraction form
    7,321.67/10,983.17 = 2,391.33/x
  3. Step 3: Cross multiply
    7,321.67x = 10,983.17 × 2,391.33
  4. Step 4: Simplify right side
    7,321.67x = 26,264,389.89
  5. Step 5: Solve for x
    x = 26,264,389.89/7,321.67
  6. Step 6: Final answer
    x = 3,587.22

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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.