Home / 4,765.20-7,180.35-3,918.48

Finding the Fourth Proportional to 4,765.20, 7,180.35 and 3,918.48

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Solution

The fourth proportional to 4,765.20, 7,180.35 and 3,918.48 is: 5,904.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,765.20 : 7,180.35 = 3,918.48 : x
  2. Step 2: Convert to fraction form
    4,765.20/7,180.35 = 3,918.48/x
  3. Step 3: Cross multiply
    4,765.20x = 7,180.35 × 3,918.48
  4. Step 4: Simplify right side
    4,765.20x = 28,136,057.87
  5. Step 5: Solve for x
    x = 28,136,057.87/4,765.20
  6. Step 6: Final answer
    x = 5,904.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.