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Finding the Fourth Proportional to 7,234.16, 9,983.97 and 4,090.28

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Solution

The fourth proportional to 7,234.16, 9,983.97 and 4,090.28 is: 5,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,234.16 : 9,983.97 = 4,090.28 : x
  2. Step 2: Convert to fraction form
    7,234.16/9,983.97 = 4,090.28/x
  3. Step 3: Cross multiply
    7,234.16x = 9,983.97 × 4,090.28
  4. Step 4: Simplify right side
    7,234.16x = 40,837,232.81
  5. Step 5: Solve for x
    x = 40,837,232.81/7,234.16
  6. Step 6: Final answer
    x = 5,645.06

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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.