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Finding the Fourth Proportional to 5,399.37, 7,451.07 and 3,009.30

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Solution

The fourth proportional to 5,399.37, 7,451.07 and 3,009.30 is: 4,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.37 : 7,451.07 = 3,009.30 : x
  2. Step 2: Convert to fraction form
    5,399.37/7,451.07 = 3,009.30/x
  3. Step 3: Cross multiply
    5,399.37x = 7,451.07 × 3,009.30
  4. Step 4: Simplify right side
    5,399.37x = 22,422,504.95
  5. Step 5: Solve for x
    x = 22,422,504.95/5,399.37
  6. Step 6: Final answer
    x = 4,152.80

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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.