Home / 4,753.87-7,120.64-3,860.37

Finding the Fourth Proportional to 4,753.87, 7,120.64 and 3,860.37

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Solution

The fourth proportional to 4,753.87, 7,120.64 and 3,860.37 is: 5,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.87 : 7,120.64 = 3,860.37 : x
  2. Step 2: Convert to fraction form
    4,753.87/7,120.64 = 3,860.37/x
  3. Step 3: Cross multiply
    4,753.87x = 7,120.64 × 3,860.37
  4. Step 4: Simplify right side
    4,753.87x = 27,488,314.69
  5. Step 5: Solve for x
    x = 27,488,314.69/4,753.87
  6. Step 6: Final answer
    x = 5,782.31

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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.