Home / 4,782.45-7,171.86-1,860.09

Finding the Fourth Proportional to 4,782.45, 7,171.86 and 1,860.09

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Solution

The fourth proportional to 4,782.45, 7,171.86 and 1,860.09 is: 2,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.45 : 7,171.86 = 1,860.09 : x
  2. Step 2: Convert to fraction form
    4,782.45/7,171.86 = 1,860.09/x
  3. Step 3: Cross multiply
    4,782.45x = 7,171.86 × 1,860.09
  4. Step 4: Simplify right side
    4,782.45x = 13,340,305.07
  5. Step 5: Solve for x
    x = 13,340,305.07/4,782.45
  6. Step 6: Final answer
    x = 2,789.43

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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.