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Finding the Fourth Proportional to 2,305.62, 3,458.36 and 745.56

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Solution

The fourth proportional to 2,305.62, 3,458.36 and 745.56 is: 1,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,305.62 : 3,458.36 = 745.56 : x
  2. Step 2: Convert to fraction form
    2,305.62/3,458.36 = 745.56/x
  3. Step 3: Cross multiply
    2,305.62x = 3,458.36 × 745.56
  4. Step 4: Simplify right side
    2,305.62x = 2,578,416.75
  5. Step 5: Solve for x
    x = 2,578,416.75/2,305.62
  6. Step 6: Final answer
    x = 1,118.32

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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.