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Finding the Fourth Proportional to 6,574.37, 9,072.41 and 3,920.40

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Solution

The fourth proportional to 6,574.37, 9,072.41 and 3,920.40 is: 5,410.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,574.37 : 9,072.41 = 3,920.40 : x
  2. Step 2: Convert to fraction form
    6,574.37/9,072.41 = 3,920.40/x
  3. Step 3: Cross multiply
    6,574.37x = 9,072.41 × 3,920.40
  4. Step 4: Simplify right side
    6,574.37x = 35,567,456.56
  5. Step 5: Solve for x
    x = 35,567,456.56/6,574.37
  6. Step 6: Final answer
    x = 5,410.02

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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.