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Finding the Fourth Proportional to 5,549.36, 8,331.36 and 5,090.90

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Solution

The fourth proportional to 5,549.36, 8,331.36 and 5,090.90 is: 7,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,549.36 : 8,331.36 = 5,090.90 : x
  2. Step 2: Convert to fraction form
    5,549.36/8,331.36 = 5,090.90/x
  3. Step 3: Cross multiply
    5,549.36x = 8,331.36 × 5,090.90
  4. Step 4: Simplify right side
    5,549.36x = 42,414,120.62
  5. Step 5: Solve for x
    x = 42,414,120.62/5,549.36
  6. Step 6: Final answer
    x = 7,643.07

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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.