Home / 4,765.72-7,147.32-1,645.24

Finding the Fourth Proportional to 4,765.72, 7,147.32 and 1,645.24

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Solution

The fourth proportional to 4,765.72, 7,147.32 and 1,645.24 is: 2,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.72 : 7,147.32 = 1,645.24 : x
  2. Step 2: Convert to fraction form
    4,765.72/7,147.32 = 1,645.24/x
  3. Step 3: Cross multiply
    4,765.72x = 7,147.32 × 1,645.24
  4. Step 4: Simplify right side
    4,765.72x = 11,759,056.76
  5. Step 5: Solve for x
    x = 11,759,056.76/4,765.72
  6. Step 6: Final answer
    x = 2,467.43

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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.