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Finding the Fourth Proportional to 7,321.37, 10,983.74 and 2,391.37

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Solution

The fourth proportional to 7,321.37, 10,983.74 and 2,391.37 is: 3,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.37 : 10,983.74 = 2,391.37 : x
  2. Step 2: Convert to fraction form
    7,321.37/10,983.74 = 2,391.37/x
  3. Step 3: Cross multiply
    7,321.37x = 10,983.74 × 2,391.37
  4. Step 4: Simplify right side
    7,321.37x = 26,266,146.91
  5. Step 5: Solve for x
    x = 26,266,146.91/7,321.37
  6. Step 6: Final answer
    x = 3,587.60

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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.